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| U.S. Normal Butane-Butylene Stocks at Refineries (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 5,374 | 4,555 | 5,940 | 6,740 | 7,634 | 8,510 | 9,859 | 11,928 | 11,335 | 10,089 | 7,716 | 6,731 |
| 1994 | 5,419 | 4,933 | 5,137 | 6,527 | 7,329 | 8,826 | 10,629 | 11,930 | 11,770 | 11,073 | 8,768 | 6,940 |
| 1995 | 5,107 | 4,128 | 5,109 | 6,521 | 7,177 | 8,617 | 10,411 | 11,963 | 12,322 | 10,398 | 8,494 | 5,631 |
| 1996 | 4,557 | 3,935 | 4,696 | 5,830 | 6,476 | 7,885 | 9,586 | 11,777 | 12,951 | 10,996 | 7,629 | 5,384 |
| 1997 | 4,638 | 4,011 | 4,263 | 5,424 | 7,020 | 8,572 | 9,844 | 12,589 | 12,070 | 11,282 | 8,617 | 6,136 |
| 1998 | 4,808 | 4,882 | 5,254 | 7,436 | 9,580 | 11,356 | 12,539 | 14,553 | 13,967 | 12,787 | 10,069 | 7,575 |
| 1999 | 5,949 | 4,685 | 5,547 | 7,008 | 8,785 | 9,742 | 11,269 | 13,550 | 12,719 | 11,421 | 9,362 | 6,917 |
| 2000 | 5,464 | 5,073 | 5,046 | 6,208 | 7,357 | 8,655 | 10,671 | 12,334 | 11,753 | 10,900 | 8,572 | 6,344 |
| 2001 | 4,443 | 3,663 | 3,699 | 5,399 | 7,015 | 8,805 | 10,391 | 12,961 | 12,779 | 11,883 | 9,718 | 8,260 |
| 2002 | 6,943 | 6,650 | 7,060 | 8,359 | 9,694 | 11,284 | 12,844 | 15,039 | 14,382 | 13,265 | 10,376 | 8,580 |
| 2003 | 7,051 | 5,864 | 6,188 | 8,103 | 9,874 | 10,973 | 12,588 | 13,960 | 13,187 | 12,941 | 10,646 | 9,323 |
| 2004 | 8,021 | 6,737 | 6,355 | 6,173 | 8,169 | 9,800 | 11,950 | 13,884 | 13,578 | 12,026 | 9,544 | 7,578 |
| 2005 | 6,610 | 5,625 | 6,085 | 7,820 | 9,168 | 10,802 | 11,951 | 13,081 | 12,492 | 10,428 | 8,434 | 6,219 |
| 2006 | 5,726 | 5,785 | 6,241 | 8,123 | 9,296 | 9,248 | 10,171 | 12,296 | 12,673 | 12,080 | 9,222 | 7,014 |
| 2007 | 5,755 | 5,193 | 5,433 | 7,221 | 8,833 | 10,267 | 10,720 | 11,944 | 11,530 | 10,181 | 7,586 | 6,320 |
| 2008 | 5,959 | 4,752 | 5,123 | 6,000 | 7,235 | 8,716 | 10,259 | 11,133 | 10,996 | 10,280 | 8,256 | 6,482 |
| 2009 | 5,520 | 4,963 | 5,023 | 6,761 | 8,038 | 9,405 | 10,477 | 11,915 | 11,583 | 10,124 | 7,675 | 6,478 |
| 2010 | 6,611 | 6,146 | 6,765 | 7,744 | 8,505 | 9,600 | 9,805 | 10,568 | 10,631 | 10,307 | 9,446 | 7,818 |
| 2011 | 7,221 | 6,162 | 6,735 | 7,531 | 8,788 | 9,937 | 10,993 | 12,155 | 12,248 | 11,577 | 9,562 | 7,794 |
| 2012 | 7,081 | 5,946 | 5,988 | 7,670 | 9,187 | 9,971 | 11,359 | 12,746 | 12,208 | 11,626 | 10,964 | 8,859 |
| 2013 | 7,502 | 6,533 | ||||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 4/29/2013 |
| Next Release Date: Last Week of May 2013 |