STA 404 US Field Production of Crude Oil Data Analysis

STA 404/504 Homework 2Due Wednesday, March 9, by 11:59pm, submit through canvas
Learning Objectives:
• Forming a data cleaning plan, break it into smaller tasks and complete it step by step
• Reading in data with poorly structured heading
• Restructuring specific columns from wide format to tall format
• Work with time formatting variables and strings
• Documenting a fully reproducible data cleaning/visualization process in a scripted language
Assignment Description:
The dataset “Weekly_US_Crude_Oil.xlsx” on canvas contains the weekly U.S. field production of crude
oil (Thousand Barrels per day). The data is from the first week of 1983 to the second week of February
2021. The goal of this assignment is to clean this data to create time series line plots. The entire data
cleaning process must be conducted in R, no cleaning “by hand” may be done in excel before loading the
data to R. The assignments for 404 and 504 are different:
For all students, when creating the plots, make sure you add at least one additional aesthetic feature,
that has not been used in class, to the line plot. For example, you may change the shape of the line,
color, background, font, theme, etc. You may add different additional aesthetic features for different
plots, but it’s ok if you only add one additional aesthetic feature in one of the plots.
•
The following questions are for students who take 404 and 504: Create two time series line
plots, one is for the weekly U.S. field production of crude oil, the other one is for the monthly
(you can calculate the average value for each month) U.S. field production of crude oil.
o The layout of the weekly production plot should look similar like the one in this website
https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=WCRFPUS2&f=W (The
plot in the website is interactive, you can just generate a static plot. Make sure the
beginning date and ending date and other necessary information is clearly displayed
either in the label, or in titles/footnotes. You don’t need to make the color, font, other
format exactly the way it is in that website).
o The monthly production plot has similar format with the 4 Wk Avg plot (with a more
complicated calculation method), but the numbers do not match exactly.
•
The following question is for students who take 504 only: Apart from the two time series line
plots described above, please provide a third time series line plot that display both the weekly
and quarterly (calculate the average within each quarter) line plots in one picture. You may use
different colors for the two lines and the audience should be able to distinguish the two lines
and see the overlap clearly.
General Problem-Solving Process:
The data is very messy and improperly structured. The following is one possible way to deal with the
problem.
Step 1: Clean and restructure the data in R using the dplyr, tidyr, stringr, and lubridate packages so that
the cleaned data is saved as data frame that has only two columns: date and production.
The date column can be converted from a character to a POSIX format (POSIX dates consists of the year,
followed by the month and day, separated by slashes or dashes) using a function from the lubridate
package. You may open the data file in a spreadsheet editor like excel to take a look at the structural
issues, but all the work about data cleaning must be done in R. Others will be able to run your code and
get the cleaned data, without editing the code, except for changing the working directory.
Step 2: Use appropriate ggplot() code to make plots. You will need to utilize some
appropriate ggplot() options that has not been discussed in class.
Some Hints:
1. To read in the excel file, load the package readxl, and use the function read_excel(). The header
of this data is two rows of poorly formatted labels. When you read in the data you may want to
use the “skip=” option to skip the data you don’t need.
2. The first column has the year/month combined followed by five pairs of columns for the dates
and productions associated with weeks 1 through 5 of each month. Each of these five column
pairs will need to be moved from wide format to tall format using functions in the tidyr package.
3. Consider separating the data into two data sets (one for dates and the other for the
productions). Then combine the two together after cleanup. You may search for “Join two tbls
together” to find a useful way that combines these two datasets.
4. You will need to do some string handling to get things work. Search for functions that have not
been discussed during class, but can satisfy a specific need sometimes is needed.
5. To get the y-axis in a format such as 10,000, try the
option “labels=scales::comma” in scale_y_continuous().
Submission:
Please upload the following files as separate files to the canvas website. Please do not upload a zip file.
Files do not follow the requirements will receive points deduction.
(1) An Rmarkdown file that reads in data from the original file “US_Crude_Oil.xlsx”, loads the
necessary packages, cleans the data and creates plots as instructed. Please be sure to properly
document and organize your code so that the data cleaning and plot creation processes are
clear. Please also mark the questions clearly and have necessary answers and discussions.
(2) A knitted word/pdf/html file that containing the code, the outputs (the plots) and appropriate
labels, discussion if applicable.
Grading Rubric:
• For students who take 404:
10 points – Successful data cleaning process (header, wide-to-tall, string handling, date formatting)
4 points – Clarity of documentation, structure, and comments in code; meaningful variable names; code
readability.
6 points – Plots created similar to the figures in the reference website. Aesthetics, title, labels or
notations are appropriately chosen. Make sure at least one additional aesthetic feature, that have
not been used in class, is added to the plot.
• For students who take 504:
7 points – Successful data cleaning process (header, wide-to-tall, string handling, date formatting)
4 points – Clarity of documentation, structure, and comments in code; meaningful variable names; code
readability
9 points – Plots created similar to the figures in the reference website, or the requirements in the plot
description. Aesthetics, title, labels or notations are appropriately chosen. Make sure at least one
additional aesthetic feature, that have not been used in class, is added to the plot.
Weekly U.S. Field Production of Crude Oil (Thousand Barrels per Day)
Week 1
Week 2
Week 3
Year-Month End Date
Value
End Date
Value
End Date
Value
1983-Jan 01/07
8,634
01/14
8,634
01/21
8,634
1983-Feb 02/04
8,660
02/11
8,660
02/18
8,660
1983-Mar 03/04
8,677
03/11
8,677
03/18
8,677
1983-Apr 04/01
8,677
04/08
8,686
04/15
8,686
1983-May
05/13
8,682
05/20
8,682
1983-Jun 06/03
8,676
06/10
8,676
06/17
8,676
1983-Jul
07/01
8,676
07/08
8,647
07/15
8,647
1983-Aug 08/05
8,653
08/12
8,653
08/19
8,653
1983-Sep 09/02
8,666
09/09
8,666
09/16
8,666
1983-Oct 10/07
8,654
10/14
8,654
10/21
8,654
1983-Nov 11/04
8,624
11/11
8,624
11/18
8,624
1983-Dec 12/02
8,612
12/09
8,612
12/16
8,612
1984-Jan 01/06
8,659
01/13
8,659
01/20
8,659
1984-Feb 02/03
8,726
02/10
8,726
02/17
8,726
1984-Mar 03/02
8,718
03/09
8,718
03/16
8,718
1984-Apr 04/06
8,688
04/13
8,688
04/20
8,688
1984-May 05/04
8,753
05/11
8,753
05/18
8,753
1984-Jun 06/01
8,743
06/08
8,743
06/15
8,743
1984-Jul
07/06
8,769
07/13
8,769
07/20
8,769
1984-Aug 08/03
8,781
08/10
8,781
08/17
8,781
1984-Sep 09/07
8,759
09/14
8,759
09/21
8,759
1984-Oct 10/05
8,847
10/12
8,847
10/19
8,847
1984-Nov 11/02
8,846
11/09
8,846
11/16
8,846
1984-Dec 12/07
8,797
12/14
8,797
12/21
8,797
1985-Jan 01/04
8,929
01/11
8,929
01/18
8,929
1985-Feb 02/01
8,928
02/08
8,928
02/15
8,928
1985-Mar 03/01
8,927
03/08
8,927
03/15
8,927
1985-Apr 04/05
8,842
04/12
8,842
04/19
8,842
1985-May 05/03
8,969
05/10
8,969
05/17
8,969
1985-Jun 06/07
8,965
06/14
8,965
06/21
8,965
1985-Jul
07/05
8,904
07/12
8,904
07/19
8,904
1985-Aug 08/02
8,895
08/09
8,895
08/16
8,895
1985-Sep 09/06
8,874
09/13
8,874
09/20
8,874
1985-Oct 10/04
8,943
10/11
8,943
10/18
8,943
1985-Nov 11/01
8,932
11/08
8,932
11/15
8,932
1985-Dec 12/06
8,930
12/13
8,930
12/20
8,930
1986-Jan 01/03
8,942
01/10
8,942
01/17
8,942
1986-Feb 02/07
8,940
02/14
8,940
02/21
8,940
1986-Mar 03/07
8,939
03/14
8,939
03/21
8,939
1986-Apr 04/04
8,815
04/11
8,815
04/18
8,815
1986-May
1986-Jun
1986-Jul
1986-Aug
1986-Sep
1986-Oct
1986-Nov
1986-Dec
1987-Jan
1987-Feb
1987-Mar
1987-Apr
1987-May
1987-Jun
1987-Jul
1987-Aug
1987-Sep
1987-Oct
1987-Nov
1987-Dec
1988-Jan
1988-Feb
1988-Mar
1988-Apr
1988-May
1988-Jun
1988-Jul
1988-Aug
1988-Sep
1988-Oct
1988-Nov
1988-Dec
1989-Jan
1989-Feb
1989-Mar
1989-Apr
1989-May
1989-Jun
1989-Jul
1989-Aug
1989-Sep
1989-Oct
1989-Nov
05/02
06/06
07/04
08/01
09/05
10/03
11/07
12/05
01/02
02/06
03/06
04/03
05/01
06/05
07/03
08/07
09/04
10/02
11/06
12/04
01/01
02/05
03/04
04/01
05/06
06/03
07/01
08/05
09/02
10/07
11/04
12/02
01/06
02/03
03/03
04/07
05/05
06/02
07/07
08/04
09/01
10/06
11/03
8,805
8,792
8,737
8,737
8,671
8,773
8,321
8,348
8,353
8,383
8,336
8,361
8,361
8,303
8,287
8,204
8,162
8,281
8,283
8,348
8,348
8,353
8,306
8,306
8,240
8,210
8,210
8,128
8,147
8,085
8,026
8,035
8,021
7,965
7,921
7,880
7,843
7,726
7,622
7,662
7,662
7,644
7,601
05/09
06/13
07/11
08/08
09/12
10/10
11/14
12/12
01/09
02/13
03/13
04/10
05/08
06/12
07/10
08/14
09/11
10/09
11/13
12/11
01/08
02/12
03/11
04/08
05/13
06/10
07/08
08/12
09/09
10/14
11/11
12/09
01/13
02/10
03/10
04/14
05/12
06/09
07/14
08/11
09/08
10/13
11/10
8,805
8,792
8,737
8,708
8,671
8,773
8,321
8,348
8,354
8,383
8,336
8,361
8,296
8,303
8,287
8,204
8,162
8,281
8,283
8,348
8,395
8,353
8,306
8,269
8,240
8,210
8,189
8,128
8,147
8,085
8,026
8,035
8,021
7,965
7,921
7,880
7,843
7,726
7,622
7,662
7,641
7,644
7,601
05/16
06/20
07/18
08/15
09/19
10/17
11/21
12/19
01/16
02/20
03/20
04/17
05/15
06/19
07/17
08/21
09/18
10/16
11/20
12/18
01/15
02/19
03/18
04/15
05/20
06/17
07/15
08/19
09/16
10/21
11/18
12/16
01/20
02/17
03/17
04/21
05/19
06/16
07/21
08/18
09/15
10/20
11/17
8,805
8,792
8,737
8,708
8,671
8,773
8,321
8,348
8,354
8,383
8,336
8,361
8,296
8,303
8,287
8,204
8,162
8,281
8,283
8,348
8,395
8,353
8,306
8,269
8,240
8,210
8,189
8,128
8,147
8,085
8,026
8,035
8,021
7,965
7,921
7,880
7,843
7,726
7,622
7,662
7,641
7,644
7,601
1989-Dec
1990-Jan
1990-Feb
1990-Mar
1990-Apr
1990-May
1990-Jun
1990-Jul
1990-Aug
1990-Sep
1990-Oct
1990-Nov
1990-Dec
1991-Jan
1991-Feb
1991-Mar
1991-Apr
1991-May
1991-Jun
1991-Jul
1991-Aug
1991-Sep
1991-Oct
1991-Nov
1991-Dec
1992-Jan
1992-Feb
1992-Mar
1992-Apr
1992-May
1992-Jun
1992-Jul
1992-Aug
1992-Sep
1992-Oct
1992-Nov
1992-Dec
1993-Jan
1993-Feb
1993-Mar
1993-Apr
1993-May
1993-Jun
12/01
01/05
02/02
03/02
04/06
05/04
06/01
07/06
08/03
09/07
10/05
11/02
12/07
01/04
02/01
03/01
04/05
05/03
06/07
07/05
08/02
09/06
10/04
11/01
12/06
01/03
02/07
03/06
04/03
05/01
06/05
07/03
08/07
09/04
10/02
11/06
12/04
01/01
02/05
03/05
04/02
05/07
06/04
7,601
7,512
7,399
7,411
7,310
7,241
7,241
7,130
6,971
6,991
7,261
7,342
6,996
7,481
7,477
7,404
7,356
7,295
7,301
7,383
7,342
7,150
7,381
7,359
7,376
7,422
7,382
7,357
7,327
7,235
7,240
7,221
7,124
6,847
7,046
7,011
7,074
6,995
7,031
7,018
6,971
6,902
6,789
12/08
01/12
02/09
03/09
04/13
05/11
06/08
07/13
08/10
09/14
10/12
11/09
12/14
01/11
02/08
03/08
04/12
05/10
06/14
07/12
08/09
09/13
10/11
11/08
12/13
01/10
02/14
03/13
04/10
05/08
06/12
07/10
08/14
09/11
10/09
11/13
12/11
01/08
02/12
03/12
04/09
05/14
06/11
7,565
7,512
7,399
7,411
7,310
7,241
6,981
7,130
6,971
6,991
7,261
7,284
7,474
7,475
7,463
7,394
7,334
7,303
7,359
7,365
7,228
7,267
7,387
7,140
6,731
7,410
7,364
7,345
7,277
7,248
7,228
7,125
6,990
6,955
7,011
6,954
7,087
7,015
7,033
6,981
6,883
6,846
6,817
12/15
01/19
02/16
03/16
04/20
05/18
06/15
07/20
08/17
09/21
10/19
11/16
12/21
01/18
02/15
03/15
04/19
05/17
06/21
07/19
08/16
09/20
10/18
11/15
12/20
01/17
02/21
03/20
04/17
05/15
06/19
07/17
08/21
09/18
10/16
11/20
12/18
01/15
02/19
03/19
04/16
05/21
06/18
7,565
7,512
7,399
7,411
7,310
7,241
6,981
7,130
6,971
7,041
7,261
6,910
7,245
7,461
7,427
7,412
7,370
7,280
7,338
7,348
7,302
7,327
7,381
7,426
7,451
7,235
7,329
7,324
7,353
7,160
7,218
7,144
7,120
7,012
7,032
6,987
7,098
6,994
6,960
6,979
6,896
6,818
6,766
1993-Jul
1993-Aug
1993-Sep
1993-Oct
1993-Nov
1993-Dec
1994-Jan
1994-Feb
1994-Mar
1994-Apr
1994-May
1994-Jun
1994-Jul
1994-Aug
1994-Sep
1994-Oct
1994-Nov
1994-Dec
1995-Jan
1995-Feb
1995-Mar
1995-Apr
1995-May
1995-Jun
1995-Jul
1995-Aug
1995-Sep
1995-Oct
1995-Nov
1995-Dec
1996-Jan
1996-Feb
1996-Mar
1996-Apr
1996-May
1996-Jun
1996-Jul
1996-Aug
1996-Sep
1996-Oct
1996-Nov
1996-Dec
1997-Jan
07/02
08/06
09/03
10/01
11/05
12/03
01/07
02/04
03/04
04/01
05/06
06/03
07/01
08/05
09/02
10/07
11/04
12/02
01/06
02/03
03/03
04/07
05/05
06/02
07/07
08/04
09/01
10/06
11/03
12/01
01/05
02/02
03/01
04/05
05/03
06/07
07/05
08/02
09/06
10/04
11/01
12/06
01/03
6,742
6,753
6,734
6,684
6,872
6,943
6,875
6,836
6,763
6,683
6,706
6,695
6,604
6,582
6,552
6,692
6,620
6,472
6,651
6,662
6,660
6,554
6,604
6,592
6,518
6,444
6,507
6,215
6,539
6,450
6,464
6,413
6,496
6,441
6,454
6,421
6,499
6,297
6,497
6,485
6,513
6,534
6,454
07/09
08/13
09/10
10/08
11/12
12/10
01/14
02/11
03/11
04/08
05/13
06/10
07/08
08/12
09/09
10/14
11/11
12/09
01/13
02/10
03/10
04/14
05/12
06/09
07/14
08/11
09/08
10/13
11/10
12/08
01/12
02/09
03/08
04/12
05/10
06/14
07/12
08/09
09/13
10/11
11/08
12/13
01/10
6,772
6,761
6,665
6,654
6,882
6,923
6,880
6,802
6,704
6,641
6,657
6,530
6,591
6,521
6,545
6,703
6,616
6,670
6,672
6,595
6,598
6,597
6,610
6,593
6,448
6,476
6,491
6,404
6,516
6,428
6,498
6,505
6,461
6,390
6,065
6,515
6,499
6,286
6,498
6,485
6,541
6,518
6,499
07/16
08/20
09/17
10/15
11/19
12/17
01/21
02/18
03/18
04/15
05/20
06/17
07/15
08/19
09/16
10/21
11/18
12/16
01/20
02/17
03/17
04/21
05/19
06/16
07/21
08/18
09/15
10/20
11/17
12/15
01/19
02/16
03/15
04/19
05/17
06/21
07/19
08/16
09/20
10/18
11/15
12/20
01/17
6,643
6,774
6,706
6,772
6,847
6,897
6,845
6,546
6,728
6,711
6,732
6,648
6,618
6,540
6,526
6,703
6,668
6,655
6,571
6,613
6,632
6,603
6,598
6,560
6,417
6,475
6,248
6,497
6,493
6,411
6,516
6,511
6,490
6,425
6,363
6,452
6,345
6,445
6,467
6,523
6,531
6,523
6,476
1997-Feb
1997-Mar
1997-Apr
1997-May
1997-Jun
1997-Jul
1997-Aug
1997-Sep
1997-Oct
1997-Nov
1997-Dec
1998-Jan
1998-Feb
1998-Mar
1998-Apr
1998-May
1998-Jun
1998-Jul
1998-Aug
1998-Sep
1998-Oct
1998-Nov
1998-Dec
1999-Jan
1999-Feb
1999-Mar
1999-Apr
1999-May
1999-Jun
1999-Jul
1999-Aug
1999-Sep
1999-Oct
1999-Nov
1999-Dec
2000-Jan
2000-Feb
2000-Mar
2000-Apr
2000-May
2000-Jun
2000-Jul
2000-Aug
02/07
03/07
04/04
05/02
06/06
07/04
08/01
09/05
10/03
11/07
12/05
01/02
02/06
03/06
04/03
05/01
06/05
07/03
08/07
09/04
10/02
11/06
12/04
01/01
02/05
03/05
04/02
05/07
06/04
07/02
08/06
09/03
10/01
11/05
12/03
01/07
02/04
03/03
04/07
05/05
06/02
07/07
08/04
6,483
6,440
6,493
6,409
6,435
6,338
6,360
6,362
6,375
6,418
6,448
6,459
6,412
6,440
6,443
6,422
6,333
6,311
6,336
6,349
5,950
6,398
6,390
6,342
6,369
5,920
5,879
5,835
5,864
5,662
5,925
6,014
6,032
6,134
6,087
6,000
6,011
5,974
5,820
5,798
5,704
5,766
5,778
02/14
03/14
04/11
05/09
06/13
07/11
08/08
09/12
10/10
11/14
12/12
01/09
02/13
03/13
04/10
05/08
06/12
07/10
08/14
09/11
10/09
11/13
12/11
01/08
02/12
03/12
04/09
05/14
06/11
07/09
08/13
09/10
10/08
11/12
12/10
01/14
02/11
03/10
04/14
05/12
06/09
07/14
08/11
6,502
6,449
6,433
6,430
6,415
6,351
6,127
6,393
6,371
6,385
6,440
6,430
6,424
6,420
6,407
6,422
6,372
6,354
6,319
6,366
6,368
6,401
6,390
6,393
6,052
5,895
5,740
5,804
5,868
5,808
5,950
5,917
6,082
6,128
6,057
6,019
5,994
5,857
5,840
5,757
5,804
5,788
5,745
02/21
03/21
04/18
05/16
06/20
07/18
08/15
09/19
10/17
11/21
12/19
01/16
02/20
03/20
04/17
05/15
06/19
07/17
08/21
09/18
10/16
11/20
12/18
01/15
02/19
03/19
04/16
05/21
06/18
07/16
08/20
09/17
10/15
11/19
12/17
01/21
02/18
03/17
04/21
05/19
06/16
07/21
08/18
6,496
6,391
6,412
6,426
6,334
6,352
6,221
6,366
6,408
6,390
6,463
6,376
6,415
6,336
6,417
6,378
6,383
6,351
6,315
6,411
6,418
6,399
6,449
6,373
5,899
5,894
5,849
5,857
5,926
5,952
5,970
5,692
6,090
6,059
6,043
6,013
5,989
5,859
5,836
5,793
5,791
5,769
5,773
2000-Sep
2000-Oct
2000-Nov
2000-Dec
2001-Jan
2001-Feb
2001-Mar
2001-Apr
2001-May
2001-Jun
2001-Jul
2001-Aug
2001-Sep
2001-Oct
2001-Nov
2001-Dec
2002-Jan
2002-Feb
2002-Mar
2002-Apr
2002-May
2002-Jun
2002-Jul
2002-Aug
2002-Sep
2002-Oct
2002-Nov
2002-Dec
2003-Jan
2003-Feb
2003-Mar
2003-Apr
2003-May
2003-Jun
2003-Jul
2003-Aug
2003-Sep
2003-Oct
2003-Nov
2003-Dec
2004-Jan
2004-Feb
2004-Mar
09/01
10/06
11/03
12/01
01/05
02/02
03/02
04/06
05/04
06/01
07/06
08/03
09/07
10/05
11/02
12/07
01/04
02/01
03/01
04/05
05/03
06/07
07/05
08/02
09/06
10/04
11/01
12/06
01/03
02/07
03/07
04/04
05/02
06/06
07/04
08/01
09/05
10/03
11/07
12/05
01/02
02/06
03/05
5,783
5,867
5,903
5,925
5,944
5,929
5,876
5,867
5,831
5,823
5,756
5,745
5,829
5,736
5,859
5,856
5,922
5,916
5,966
5,916
5,879
5,897
5,898
5,604
5,773
4,803
5,711
5,763
5,752
5,899
5,872
5,866
5,829
5,803
5,815
5,738
5,727
5,678
5,596
5,597
5,664
5,703
5,675
09/08
10/13
11/10
12/08
01/12
02/09
03/09
04/13
05/11
06/08
07/13
08/10
09/14
10/12
11/09
12/14
01/11
02/08
03/08
04/12
05/10
06/14
07/12
08/09
09/13
10/11
11/08
12/13
01/10
02/14
03/14
04/11
05/09
06/13
07/11
08/08
09/12
10/10
11/14
12/12
01/09
02/13
03/12
5,802
5,864
5,889
5,903
5,949
5,866
5,868
5,855
5,780
5,746
5,770
5,773
5,814
5,515
5,863
5,884
5,922
5,952
5,947
5,922
5,889
5,910
5,885
5,858
5,716
5,490
5,349
5,752
5,728
5,906
5,886
5,801
5,855
5,860
5,770
5,747
5,703
5,559
5,692
5,592
5,705
5,658
5,658
09/15
10/20
11/17
12/15
01/19
02/16
03/16
04/20
05/18
06/15
07/20
08/17
09/21
10/19
11/16
12/21
01/18
02/15
03/15
04/19
05/17
06/21
07/19
08/16
09/20
10/18
11/15
12/20
01/17
02/21
03/21
04/18
05/16
06/20
07/18
08/15
09/19
10/17
11/21
12/19
01/16
02/20
03/19
5,803
5,880
5,854
5,897
5,912
5,857
5,883
5,861
5,785
5,726
5,731
5,785
5,789
5,828
5,872
5,911
5,911
5,927
5,975
5,896
5,894
5,939
5,839
5,907
5,736
5,721
5,738
5,758
5,702
5,898
5,906
5,772
5,807
5,900
5,777
5,750
5,739
5,605
5,683
5,663
5,717
5,622
5,657
2004-Apr
2004-May
2004-Jun
2004-Jul
2004-Aug
2004-Sep
2004-Oct
2004-Nov
2004-Dec
2005-Jan
2005-Feb
2005-Mar
2005-Apr
2005-May
2005-Jun
2005-Jul
2005-Aug
2005-Sep
2005-Oct
2005-Nov
2005-Dec
2006-Jan
2006-Feb
2006-Mar
2006-Apr
2006-May
2006-Jun
2006-Jul
2006-Aug
2006-Sep
2006-Oct
2006-Nov
2006-Dec
2007-Jan
2007-Feb
2007-Mar
2007-Apr
2007-May
2007-Jun
2007-Jul
2007-Aug
2007-Sep
2007-Oct
04/02
05/07
06/04
07/02
08/06
09/03
10/01
11/05
12/03
01/07
02/04
03/04
04/01
05/06
06/03
07/01
08/05
09/02
10/07
11/04
12/02
01/06
02/03
03/03
04/07
05/05
06/02
07/07
08/04
09/01
10/06
11/03
12/01
01/05
02/02
03/02
04/06
05/04
06/01
07/06
08/03
09/07
10/05
5,661
5,626
5,452
5,404
5,414
5,360
4,656
5,319
5,396
5,430
5,421
5,489
5,504
5,510
5,515
5,498
5,417
4,360
3,901
4,306
5,021
5,023
4,903
5,054
5,053
5,128
5,097
5,275
5,144
5,101
5,253
5,329
5,368
5,370
5,283
5,267
5,179
5,131
5,180
5,198
5,142
5,129
5,059
04/09
05/14
06/11
07/09
08/13
09/10
10/08
11/12
12/10
01/14
02/11
03/11
04/08
05/13
06/10
07/08
08/12
09/09
10/14
11/11
12/09
01/13
02/10
03/10
04/14
05/12
06/09
07/14
08/11
09/08
10/13
11/10
12/08
01/12
02/09
03/09
04/13
05/11
06/08
07/13
08/10
09/14
10/12
5,611
5,611
5,411
5,485
5,243
5,337
5,033
5,391
5,439
5,417
5,427
5,504
5,428
5,521
5,542
5,463
5,359
4,268
4,147
4,583
4,933
5,110
5,003
5,154
5,125
5,069
5,211
5,265
5,150
5,076
5,132
5,326
5,357
5,317
5,316
5,218
5,125
5,201
5,170
5,201
5,192
5,039
5,102
04/16
05/21
06/18
07/16
08/20
09/17
10/15
11/19
12/17
01/21
02/18
03/18
04/15
05/20
06/17
07/15
08/19
09/16
10/21
11/18
12/16
01/20
02/17
03/17
04/21
05/19
06/16
07/21
08/18
09/15
10/20
11/17
12/15
01/19
02/16
03/16
04/20
05/18
06/15
07/20
08/17
09/21
10/19
5,588
5,608
5,434
5,334
5,113
5,087
5,090
5,395
5,461
5,456
5,436
5,480
5,441
5,539
5,541
4,758
5,395
4,500
4,108
4,579
4,890
5,119
4,997
5,027
5,127
5,093
5,198
5,141
5,087
5,109
5,221
5,269
5,348
5,241
5,323
5,235
5,128
5,207
5,093
5,184
5,119
5,027
5,122
2007-Nov
2007-Dec
2008-Jan
2008-Feb
2008-Mar
2008-Apr
2008-May
2008-Jun
2008-Jul
2008-Aug
2008-Sep
2008-Oct
2008-Nov
2008-Dec
2009-Jan
2009-Feb
2009-Mar
2009-Apr
2009-May
2009-Jun
2009-Jul
2009-Aug
2009-Sep
2009-Oct
2009-Nov
2009-Dec
2010-Jan
2010-Feb
2010-Mar
2010-Apr
2010-May
2010-Jun
2010-Jul
2010-Aug
2010-Sep
2010-Oct
2010-Nov
2010-Dec
2011-Jan
2011-Feb
2011-Mar
2011-Apr
2011-May
11/02
12/07
01/04
02/01
03/07
04/04
05/02
06/06
07/04
08/01
09/05
10/03
11/07
12/05
01/02
02/06
03/06
04/03
05/01
06/05
07/03
08/07
09/04
10/02
11/06
12/04
01/01
02/05
03/05
04/02
05/07
06/04
07/02
08/06
09/03
10/01
11/05
12/03
01/07
02/04
03/04
04/01
05/06
5,126
5,117
5,051
5,013
5,100
5,097
5,099
5,114
4,960
5,172
4,084
4,422
4,885
5,152
4,935
5,327
5,401
5,469
5,280
5,358
5,171
5,172
5,266
5,360
5,506
5,538
5,507
5,475
5,527
5,473
5,533
5,445
5,414
5,239
5,603
5,514
5,596
5,582
5,575
5,597
5,593
5,638
5,609
11/09
12/14
01/11
02/08
03/14
04/11
05/09
06/13
07/11
08/08
09/12
10/10
11/14
12/12
01/09
02/13
03/13
04/10
05/08
06/12
07/10
08/14
09/11
10/09
11/13
12/11
01/08
02/12
03/12
04/09
05/14
06/11
07/09
08/13
09/10
10/08
11/12
12/10
01/14
02/11
03/11
04/08
05/13
5,134
5,110
5,013
5,044
5,100
5,096
5,128
5,145
5,139
5,139
3,988
4,572
4,943
4,967
4,917
5,323
5,414
5,482
5,306
5,273
5,171
5,169
5,304
5,377
5,317
5,524
5,496
5,482
5,540
5,475
5,516
5,503
5,352
5,352
5,573
5,528
5,597
5,604
5,205
5,610
5,591
5,635
5,618
11/16
12/21
01/18
02/15
03/21
04/18
05/16
06/20
07/18
08/15
09/19
10/17
11/21
12/19
01/16
02/20
03/20
04/17
05/15
06/19
07/17
08/21
09/18
10/16
11/20
12/18
01/15
02/19
03/19
04/16
05/21
06/18
07/16
08/20
09/17
10/15
11/19
12/17
01/21
02/18
03/18
04/15
05/20
4,942
5,117
5,042
5,034
5,103
5,101
5,045
5,120
5,165
5,078
3,932
4,630
5,006
4,972
5,052
5,300
5,432
5,421
5,352
5,257
5,176
5,173
5,300
5,371
5,433
5,524
5,404
5,505
5,536
5,466
5,540
5,501
5,460
5,511
5,556
5,536
5,581
5,598
5,321
5,604
5,570
5,625
5,583
2011-Jun
2011-Jul
2011-Aug
2011-Sep
2011-Oct
2011-Nov
2011-Dec
2012-Jan
2012-Feb
2012-Mar
2012-Apr
2012-May
2012-Jun
2012-Jul
2012-Aug
2012-Sep
2012-Oct
2012-Nov
2012-Dec
2013-Jan
2013-Feb
2013-Mar
2013-Apr
2013-May
2013-Jun
2013-Jul
2013-Aug
2013-Sep
2013-Oct
2013-Nov
2013-Dec
2014-Jan
2014-Feb
2014-Mar
2014-Apr
2014-May
2014-Jun
2014-Jul
2014-Aug
2014-Sep
2014-Oct
2014-Nov
2014-Dec
06/03
07/01
08/05
09/02
10/07
11/04
12/02
01/06
02/03
03/02
04/06
05/04
06/01
07/06
08/03
09/07
10/05
11/02
12/07
01/04
02/01
03/01
04/05
05/03
06/07
07/05
08/02
09/06
10/04
11/01
12/06
01/03
02/07
03/07
04/04
05/02
06/06
07/04
08/01
09/05
10/03
11/07
12/05
5,633
5,520
5,529
5,642
5,878
5,846
5,861
5,844
5,763
5,806
6,040
6,136
6,245
6,249
6,218
5,526
6,598
6,677
6,852
7,002
6,997
7,093
7,181
7,369
7,224
7,401
7,560
7,745
7,809
7,858
8,075
8,145
8,132
8,182
8,229
8,350
8,460
8,514
8,453
8,590
8,875
9,063
9,118
06/10
07/08
08/12
09/09
10/14
11/11
12/09
01/13
02/10
03/09
04/13
05/11
06/08
07/13
08/10
09/14
10/12
11/09
12/14
01/11
02/08
03/08
04/12
05/10
06/14
07/12
08/09
09/13
10/11
11/08
12/13
01/10
02/14
03/14
04/11
05/09
06/13
07/11
08/08
09/12
10/10
11/14
12/12
5,643
5,578
5,561
5,083
5,891
5,894
5,862
5,726
5,819
5,830
6,043
6,149
6,236
6,245
6,181
6,277
6,606
6,709
6,863
7,041
7,064
7,159
7,208
7,321
7,129
7,490
7,571
7,827
7,428
7,981
8,058
8,159
8,148
8,215
8,301
8,428
8,477
8,592
8,556
8,838
8,951
9,004
9,137
06/17
07/15
08/19
09/16
10/21
11/18
12/16
01/20
02/17
03/16
04/20
05/18
06/15
07/20
08/17
09/21
10/19
11/16
12/21
01/18
02/15
03/15
04/19
05/17
06/21
07/19
08/16
09/20
10/18
11/15
12/20
01/17
02/21
03/21
04/18
05/16
06/20
07/18
08/15
09/19
10/17
11/21
12/19
5,650
5,591
5,591
5,747
5,876
5,887
5,862
5,722
5,817
5,826
6,113
6,239
6,353
6,364
6,246
6,509
6,610
6,710
6,984
6,989
7,118
7,150
7,326
7,258
7,261
7,555
7,518
7,777
7,896
7,974
8,111
8,052
8,059
8,190
8,360
8,434
8,446
8,565
8,577
8,867
8,934
9,077
9,127
2015-Jan
2015-Feb
2015-Mar
2015-Apr
2015-May
2015-Jun
2015-Jul
2015-Aug
2015-Sep
2015-Oct
2015-Nov
2015-Dec
2016-Jan
2016-Feb
2016-Mar
2016-Apr
2016-May
2016-Jun
2016-Jul
2016-Aug
2016-Sep
2016-Oct
2016-Nov
2016-Dec
2017-Jan
2017-Feb
2017-Mar
2017-Apr
2017-May
2017-Jun
2017-Jul
2017-Aug
2017-Sep
2017-Oct
2017-Nov
2017-Dec
2018-Jan
2018-Feb
2018-Mar
2018-Apr
2018-May
2018-Jun
2018-Jul
01/02
02/06
03/06
04/03
05/01
06/05
07/03
08/07
09/04
10/02
11/06
12/04
01/01
02/05
03/04
04/01
05/06
06/03
07/01
08/05
09/02
10/07
11/04
12/02
01/06
02/03
03/03
04/07
05/05
06/02
07/07
08/04
09/01
10/06
11/03
12/01
01/05
02/02
03/02
04/06
05/04
06/01
07/06
9,132
9,226
9,366
9,404
9,369
9,610
9,604
9,395
9,135
9,172
9,185
9,164
9,219
9,186
9,078
9,008
8,802
8,745
8,428
8,445
8,458
8,450
8,692
8,697
8,946
8,978
9,088
9,235
9,314
9,318
9,397
9,423
8,781
9,480
9,620
9,707
9,492
10,251
10,369
10,525
10,703
10,800
10,900
01/09
02/13
03/13
04/10
05/08
06/12
07/10
08/14
09/11
10/09
11/13
12/11
01/08
02/12
03/11
04/08
05/13
06/10
07/08
08/12
09/09
10/14
11/11
12/09
01/13
02/10
03/10
04/14
05/12
06/09
07/14
08/11
09/08
10/13
11/10
12/08
01/12
02/09
03/09
04/13
05/11
06/08
07/13
9,192
9,280
9,419
9,384
9,374
9,589
9,562
9,348
9,117
9,096
9,182
9,176
9,227
9,135
9,068
8,977
8,791
8,716
8,485
8,597
8,493
8,464
8,681
8,796
8,944
8,977
9,109
9,252
9,305
9,330
9,429
9,502
9,353
8,406
9,645
9,780
9,750
10,271
10,381
10,540
10,723
10,900
11,000
01/16
02/20
03/20
04/17
05/15
06/19
07/17
08/21
09/18
10/16
11/20
12/18
01/15
02/19
03/18
04/15
05/20
06/17
07/15
08/19
09/16
10/21
11/18
12/16
01/20
02/17
03/17
04/21
05/19
06/16
07/21
08/18
09/15
10/20
11/17
12/15
01/19
02/16
03/16
04/20
05/18
06/15
07/20
9,186
9,285
9,422
9,366
9,262
9,604
9,558
9,337
9,136
9,096
9,165
9,179
9,235
9,102
9,038
8,953
8,767
8,677
8,494
8,548
8,512
8,504
8,690
8,786
8,961
9,001
9,129
9,265
9,320
9,350
9,410
9,528
9,510
9,507
9,658
9,789
9,878
10,270
10,407
10,586
10,725
10,900
11,000
2018-Aug
2018-Sep
2018-Oct
2018-Nov
2018-Dec
2019-Jan
2019-Feb
2019-Mar
2019-Apr
2019-May
2019-Jun
2019-Jul
2019-Aug
2019-Sep
2019-Oct
2019-Nov
2019-Dec
2020-Jan
2020-Feb
2020-Mar
2020-Apr
2020-May
2020-Jun
2020-Jul
2020-Aug
2020-Sep
2020-Oct
2020-Nov
2020-Dec
2021-Jan
2021-Feb
08/03
09/07
10/05
11/02
12/07
01/04
02/01
03/01
04/05
05/03
06/07
07/05
08/02
09/06
10/04
11/01
12/06
01/03
02/07
03/06
04/03
05/01
06/05
07/03
08/07
09/04
10/02
11/06
12/04
01/01
02/05
10,800
10,900
11,200
11,600
11,600
11,700
11,900
12,100
12,200
12,200
12,300
12,300
12,300
12,400
12,600
12,600
12,800
12,900
13,000
13,000
12,400
11,900
11,100
11,000
10,700
10,000
11,000
10,500
11,100
11,000
11,000
08/10
09/14
10/12
11/09
12/14
01/11
02/08
03/08
04/12
05/10
06/14
07/12
08/09
09/13
10/11
11/08
12/13
01/10
02/14
03/13
04/10
05/08
06/12
07/10
08/14
09/11
10/09
11/13
12/11
01/08
02/12
10,900
11,000
10,900
11,700
11,600
11,900
11,900
12,000
12,100
12,100
12,200
12,000
12,300
12,400
12,600
12,800
12,800
13,000
13,000
13,100
12,300
11,600
10,500
11,000
10,700
10,900
10,500
10,900
11,000
11,000
10,800
08/17
09/21
10/19
11/16
12/21
01/18
02/15
03/15
04/19
05/17
06/21
07/19
08/16
09/20
10/18
11/15
12/20
01/17
02/21
03/20
04/17
05/15
06/19
07/17
08/21
09/18
10/16
11/20
12/18
01/15
11,000
11,100
10,900
11,700
11,700
11,900
12,000
12,100
12,200
12,200
12,100
11,300
12,300
12,500
12,600
12,800
12,900
13,000
13,000
13,000
12,200
11,500
11,000
11,100
10,800
10,700
9,900
11,000
11,000
11,000
Week 4
End Date
Value
01/28
8,634
02/25
8,660
03/25
8,677
06/24
07/22
08/26
09/23
10/28
11/25
12/23
01/27
02/24
03/23
04/27
05/25
06/22
07/27
08/24
09/28
10/26
11/23
12/28
01/25
02/22
03/22
04/26
05/24
06/28
07/26
08/23
09/27
10/25
11/22
12/27
01/24
02/28
03/28
04/25
8,676
8,647
8,653
8,666
8,654
8,624
8,612
8,659
8,726
8,718
8,688
8,753
8,743
8,769
8,781
8,759
8,847
8,846
8,797
8,929
8,928
8,927
8,842
8,969
8,965
8,904
8,895
8,874
8,943
8,932
8,930
8,942
8,939
8,939
8,815
Week 5
End Date
Value
04/29
8,686
07/29
8,647
09/30
8,666
12/30
8,612
03/30
8,718
06/29
8,743
08/31
8,781
11/30
8,846
03/29
8,927
05/31
8,969
08/30
8,895
11/29
8,932
01/31
8,942
05/23
06/27
07/25
08/22
09/26
10/24
11/28
12/26
01/23
02/27
03/27
04/24
05/22
06/26
07/24
08/28
09/25
10/23
11/27
12/25
01/22
02/26
03/25
04/22
05/27
06/24
07/22
08/26
09/23
10/28
11/25
12/23
01/27
02/24
03/24
04/28
05/26
06/23
07/28
08/25
09/22
10/27
11/24
8,805
8,792
8,737
8,708
8,671
8,773
8,321
8,348
8,354
8,383
8,336
8,361
8,296
8,303
8,287
8,204
8,162
8,281
8,283
8,348
8,395
8,353
8,306
8,269
8,240
8,210
8,189
8,128
8,147
8,085
8,026
8,035
8,021
7,965
7,921
7,880
7,843
7,726
7,622
7,662
7,641
7,644
7,601
05/30
8,805
08/29
8,708
10/31
8,773
01/30
8,354
05/29
8,296
07/31
8,287
10/30
8,281
01/29
8,395
04/29
8,269
07/29
8,189
09/30
8,147
12/30
8,035
03/31
7,921
06/30
7,726
09/29
7,641
12/22
01/26
02/23
03/23
04/27
05/25
06/22
07/27
08/24
09/28
10/26
11/23
12/28
01/25
02/22
03/22
04/26
05/24
06/28
07/26
08/23
09/27
10/25
11/22
12/27
01/24
02/28
03/27
04/24
05/22
06/26
07/24
08/28
09/25
10/23
11/27
12/25
01/22
02/26
03/26
04/23
05/28
06/25
7,565
7,512
7,399
7,411
7,310
7,241
6,981
7,130
6,971
7,041
7,329
7,440
7,559
7,219
7,415
7,385
7,346
7,336
7,377
7,355
7,215
7,365
7,384
7,388
7,449
7,343
7,365
7,283
7,238
7,205
7,194
7,095
6,678
7,049
7,036
7,064
7,053
7,043
6,981
6,964
6,912
6,842
6,749
12/29
7,565
03/30
7,411
06/29
6,981
08/31
6,971
11/30
7,235
03/29
7,383
05/31
7,323
08/30
7,274
11/29
7,226
01/31
7,357
05/29
7,219
07/31
7,059
10/30
7,041
01/29
7,035
04/30
6,913
07/23
08/27
09/24
10/22
11/26
12/24
01/28
02/25
03/25
04/22
05/27
06/24
07/22
08/26
09/23
10/28
11/25
12/23
01/27
02/24
03/24
04/28
05/26
06/23
07/28
08/25
09/22
10/27
11/24
12/22
01/26
02/23
03/22
04/26
05/24
06/28
07/26
08/23
09/27
10/25
11/22
12/27
01/24
6,540
6,790
6,650
6,837
6,878
6,854
6,886
6,792
6,599
6,292
6,629
6,656
6,522
6,583
6,595
6,633
6,626
6,703
6,526
6,546
6,474
6,539
6,626
6,529
6,484
6,483
6,414
6,512
6,484
6,467
6,405
6,501
6,473
6,173
6,412
6,489
6,394
6,481
6,520
6,514
6,512
6,506
6,513
07/30
6,730
10/29
6,868
12/31
6,857
04/29
6,748
07/29
6,566
09/30
6,640
12/30
6,675
03/31
6,380
06/30
6,545
09/29
6,450
12/29
6,474
03/29
6,440
05/31
6,392
08/30
6,526
11/29
6,538
01/31
6,505
02/28
03/28
04/25
05/23
06/27
07/25
08/22
09/26
10/24
11/28
12/26
01/23
02/27
03/27
04/24
05/22
06/26
07/24
08/28
09/25
10/23
11/27
12/25
01/22
02/26
03/26
04/23
05/28
06/25
07/23
08/27
09/24
10/22
11/26
12/24
01/28
02/25
03/24
04/28
05/26
06/23
07/28
08/25
6,501
6,409
6,465
6,423
6,357
6,337
6,387
6,396
6,407
6,416
6,462
6,359
6,368
6,405
6,397
6,368
6,269
6,354
6,346
6,396
6,442
6,401
6,437
6,352
5,911
5,864
5,707
5,845
5,884
5,927
5,994
5,973
6,101
6,006
6,058
5,988
6,007
5,863
5,838
5,784
5,726
5,764
5,782
05/30
6,439
08/29
6,400
10/31
6,400
01/30
6,377
05/29
6,346
07/31
6,340
10/30
6,417
01/29
6,363
04/30
5,877
07/30
5,898
10/29
6,111
12/31
6,043
03/31
5,873
06/30
5,732
09/22
10/27
11/24
12/22
01/26
02/23
03/23
04/27
05/25
06/22
07/27
08/24
09/28
10/26
11/23
12/28
01/25
02/22
03/22
04/26
05/24
06/28
07/26
08/23
09/27
10/25
11/22
12/27
01/24
02/28
03/28
04/25
05/23
06/27
07/25
08/22
09/26
10/24
11/28
12/26
01/23
02/27
03/26
5,680
5,894
5,883
5,875
5,935
5,875
5,868
5,884
5,819
5,740
5,705
5,796
5,735
5,879
5,882
5,902
5,909
5,956
5,948
5,865
5,890
5,917
5,844
5,918
5,190
5,714
5,754
5,749
5,739
5,901
5,906
5,766
5,813
5,867
5,699
5,736
5,734
5,614
5,709
5,658
5,709
5,661
5,658
09/29
5,862
12/29
5,903
03/30
5,883
06/29
5,756
08/31
5,751
11/30
5,873
03/29
5,956
05/31
5,896
08/30
5,883
11/29
5,740
01/31
5,764
05/30
5,837
08/29
5,723
10/31
5,550
01/30
5,710
04/23
05/28
06/25
07/23
08/27
09/24
10/22
11/26
12/24
01/28
02/25
03/25
04/22
05/27
06/24
07/22
08/26
09/23
10/28
11/25
12/23
01/27
02/24
03/24
04/28
05/26
06/23
07/28
08/25
09/22
10/27
11/24
12/22
01/26
02/23
03/23
04/27
05/25
06/22
07/27
08/24
09/28
10/26
5,618
5,460
5,394
5,446
5,401
4,946
5,110
5,408
5,421
5,437
5,492
5,496
5,415
5,537
5,359
5,448
5,427
4,348
4,068
4,765
4,891
4,862
4,985
5,016
5,122
5,088
5,162
4,940
5,099
5,106
5,307
5,030
5,361
5,224
5,285
5,218
5,089
5,148
5,108
5,206
5,161
5,064
5,114
04/30
5,624
07/30
5,367
10/29
5,176
12/31
5,430
04/29
5,423
07/29
5,149
09/30
3,813
12/30
4,864
03/31
5,024
06/30
5,129
09/29
5,151
12/29
5,369
03/30
5,243
06/29
5,122
08/31
5,021
11/23
12/28
01/25
02/22
03/28
04/25
05/23
06/27
07/25
08/22
09/26
10/24
11/28
12/26
01/23
02/27
03/27
04/24
05/22
06/26
07/24
08/28
09/25
10/23
11/27
12/25
01/22
02/26
03/26
04/23
05/28
06/25
07/23
08/27
09/24
10/22
11/26
12/24
01/28
02/25
03/25
04/22
05/27
5,117
5,078
4,998
5,044
5,087
5,098
5,128
5,123
5,160
4,906
3,839
4,675
5,118
4,979
5,045
5,373
5,480
5,269
5,364
5,163
5,107
5,244
5,375
5,357
5,561
5,512
5,421
5,510
5,489
5,488
5,320
5,257
5,486
5,602
5,562
5,540
5,555
5,575
5,568
5,591
5,568
5,610
5,609
11/30
5,133
02/29
5,050
05/30
5,139
08/29
5,097
10/31
4,776
01/30
5,235
05/29
5,358
07/31
5,246
10/30
5,391
01/29
5,403
04/30
5,522
07/30
5,440
10/29
5,593
12/31
5,598
04/29
5,623
06/24
07/22
08/26
09/23
10/28
11/25
12/23
01/27
02/24
03/23
04/27
05/25
06/22
07/27
08/24
09/28
10/26
11/23
12/28
01/25
02/22
03/22
04/26
05/24
06/28
07/26
08/23
09/27
10/25
11/22
12/27
01/24
02/28
03/28
04/25
05/23
06/27
07/25
08/22
09/26
10/24
11/28
12/26
5,593
5,377
5,598
5,756
5,818
5,864
5,846
5,720
5,814
5,821
6,121
6,227
6,257
6,320
6,258
6,520
6,669
6,818
6,985
6,993
7,096
7,151
7,312
7,292
7,267
7,542
7,609
7,784
7,853
8,019
8,121
8,044
8,077
8,192
8,352
8,472
8,442
8,443
8,631
8,837
8,970
9,083
9,121
07/29
5,523
09/30
5,800
12/30
5,851
03/30
6,049
06/29
6,094
08/31
5,486
11/30
6,817
03/29
7,151
05/31
7,300
08/30
7,621
11/29
8,011
01/31
8,044
05/30
8,383
08/29
8,630
10/31
8,972
01/23
02/27
03/27
04/24
05/22
06/26
07/24
08/28
09/25
10/23
11/27
12/25
01/22
02/26
03/25
04/22
05/27
06/24
07/22
08/26
09/23
10/28
11/25
12/23
01/27
02/24
03/24
04/28
05/26
06/23
07/28
08/25
09/22
10/27
11/24
12/22
01/26
02/23
03/23
04/27
05/25
06/22
07/27
9,213
9,324
9,386
9,373
9,566
9,595
9,413
9,218
9,096
9,112
9,202
9,202
9,221
9,077
9,022
8,938
8,735
8,622
8,515
8,488
8,497
8,522
8,699
8,766
8,915
9,032
9,147
9,293
9,342
9,250
9,430
9,530
9,547
9,553
9,682
9,754
9,919
10,283
10,433
10,619
10,769
10,900
10,900
01/30
9,177
05/29
9,586
07/31
9,465
10/30
9,160
01/29
9,214
04/29
8,825
07/29
8,460
09/30
8,467
12/30
8,770
03/31
9,199
06/30
9,338
09/29
9,561
12/29
9,782
03/30
10,460
06/29
10,900
08/24
09/28
10/26
11/23
12/28
01/25
02/22
03/22
04/26
05/24
06/28
07/26
08/23
09/27
10/25
11/22
12/27
01/24
02/28
03/27
04/24
05/22
06/26
07/24
08/28
09/25
10/23
11/27
12/25
01/22
11,000
11,100
11,200
11,700
11,700
11,900
12,100
12,100
12,300
12,300
12,200
12,200
12,500
12,400
12,600
12,900
12,900
13,000
13,100
13,000
12,100
11,400
11,000
11,100
9,700
10,700
11,100
11,100
11,000
10,900
08/31
11,000
11/30
11,700
03/29
12,200
05/31
12,400
08/30
12,400
11/29
12,900
01/31
12,900
05/29
11,200
07/31
11,000
10/30
10,500
01/29
10,900