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| U.S. Normal Butane-Butylene Stock Change (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | -1,950 | -1,119 | -290 | 2,823 | 2,106 | 2,098 | 2,336 | 1,917 | 2,411 | -1,139 | -4,033 | -5,989 |
| 1982 | -3,565 | -2,641 | -3,778 | -287 | 1,648 | 2,418 | 1,023 | 1,801 | 410 | -1,997 | -3,145 | -3,729 |
| 1983 | -3,655 | 66 | 1,473 | 2,619 | 1,240 | 1,851 | 2,293 | 2,844 | 577 | 620 | -3,244 | -4,813 |
| 1984 | -2,032 | -2,107 | 754 | 765 | 1,456 | 504 | 1,495 | 904 | -584 | -2,793 | -2,818 | -2,229 |
| 1985 | -152 | -915 | -329 | 1,841 | 2,462 | 3,224 | 1,495 | 1,362 | -655 | -1,969 | -2,547 | -2,540 |
| 1986 | -1,110 | -1,461 | 822 | 1,224 | 1,280 | 3,720 | 3,799 | 3,732 | 1,270 | -2,003 | -5,260 | -5,129 |
| 1987 | -4,108 | -989 | 539 | 1,808 | 617 | 2,454 | 2,980 | 3,503 | 1,829 | -847 | -2,709 | -4,394 |
| 1988 | -2,940 | -1,804 | 535 | 2,266 | 2,278 | 3,057 | 4,741 | 4,124 | 370 | 529 | -3,871 | -4,818 |
| 1989 | -4,365 | -934 | 538 | 1,995 | 3,869 | 2,680 | 4,401 | 3,159 | -605 | -4,537 | -6,064 | -4,342 |
| 1990 | -3,902 | -921 | 3,201 | 2,950 | 5,065 | 5,152 | 4,756 | 5,772 | -2,230 | -2,989 | -8,129 | -6,208 |
| 1991 | -5,039 | -2,253 | 3,808 | 4,088 | 5,347 | 2,446 | 3,897 | 5,129 | -927 | -1,647 | -6,955 | -8,245 |
| 1992 | -6,465 | -1,431 | 4,385 | 6,768 | 5,196 | 3,363 | 4,209 | 5,461 | -1,141 | -3,373 | -7,575 | -8,035 |
| 1993 | -6,418 | -1,037 | 3,342 | 4,393 | 5,727 | 4,313 | 4,062 | 6,348 | 324 | -2,697 | -6,413 | -7,464 |
| 1994 | -7,349 | -4,377 | 1,704 | 4,133 | 3,888 | 5,739 | 3,737 | 4,009 | -827 | -3,286 | -5,798 | -6,697 |
| 1995 | -4,891 | -2,723 | 3,429 | 4,455 | 4,131 | 5,406 | 5,468 | 5,679 | 2,453 | -4,801 | -8,027 | -9,448 |
| 1996 | -6,658 | -2,751 | 1,918 | 4,053 | 2,109 | 3,265 | 4,764 | 6,487 | 912 | -3,495 | -7,832 | -5,599 |
| 1997 | -4,738 | -2,895 | 1,346 | 4,974 | 5,408 | 6,220 | 4,780 | 6,353 | -813 | -3,744 | -6,997 | -9,513 |
| 1998 | -5,547 | -888 | 1,980 | 6,297 | 6,720 | 5,537 | 4,729 | 5,438 | 838 | -4,893 | -7,627 | -8,812 |
| 1999 | -5,954 | -2,458 | 1,463 | 4,764 | 6,673 | 4,491 | 5,538 | 5,305 | -3,599 | -5,714 | -3,630 | -9,752 |
| 2000 | -5,262 | -3,191 | 1,085 | 4,643 | 4,841 | 4,069 | 4,794 | 5,471 | 1,686 | -6,109 | -4,777 | -7,404 |
| 2001 | -6,216 | -1,778 | 1,599 | 3,900 | 5,428 | 6,591 | 5,035 | 6,669 | 1,740 | -3,947 | -6,996 | -6,385 |
| 2002 | -7,064 | -3,089 | 1,763 | 4,707 | 4,398 | 4,552 | 5,472 | 6,759 | -602 | -3,601 | -8,828 | -7,012 |
| 2003 | -5,875 | -3,914 | 90 | 3,738 | 4,685 | 5,096 | 4,548 | 3,853 | -785 | -2,062 | -5,412 | -5,795 |
| 2004 | -3,897 | -3,100 | 774 | 1,999 | 6,346 | 4,979 | 6,500 | 6,898 | 69 | -4,005 | -8,022 | -7,315 |
| 2005 | -5,501 | -2,590 | 1,761 | 7,126 | 7,843 | 7,040 | 7,506 | 4,529 | -5,152 | -6,694 | -8,522 | -8,085 |
| 2006 | -4,721 | -1,440 | 973 | 5,697 | 5,656 | 4,986 | 5,118 | 5,451 | 433 | -2,044 | -8,417 | -7,724 |
| 2007 | -6,518 | -4,079 | 1,121 | 4,117 | 6,774 | 6,030 | 3,759 | 6,381 | 127 | -5,247 | -8,338 | -7,100 |
| 2008 | -5,701 | -2,675 | 1,409 | 6,014 | 8,108 | 6,618 | 4,764 | 5,638 | 905 | -6,450 | -8,713 | -8,748 |
| 2009 | -7,122 | -2,549 | 1,692 | 7,054 | 7,103 | 7,003 | 6,946 | 7,464 | -848 | -6,031 | -11,368 | -8,226 |
| 2010 | -6,145 | -3,440 | 1,860 | 4,296 | 5,955 | 7,470 | 6,324 | 7,616 | 496 | -3,480 | -7,489 | -9,960 |
| 2011 | -5,036 | -5,447 | 1,203 | 5,772 | 6,361 | 7,305 | 7,686 | 6,466 | -129 | -4,251 | -10,211 | -10,592 |
| 2012 | -5,624 | -4,319 | 1,544 | 6,119 | 8,696 | 9,097 | 7,364 | 7,608 | 8 | -6,885 | -11,026 | -10,353 |
| 2013 | -6,376 | -4,310 | 476 | |||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 5/30/2013 |
| Next Release Date: Last Week of June 2013 |
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