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| U.S. Isobutane-Isobutylene Stocks at Bulk Terminals (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 6,206 | 5,881 | 6,067 | 5,998 | 7,195 | 7,904 | 7,848 | 7,247 | 7,995 | 7,788 | 6,533 | 5,707 |
| 1994 | 5,810 | 6,286 | 6,050 | 5,723 | 5,540 | 5,477 | 4,444 | 5,085 | 6,183 | 5,912 | 4,707 | 3,727 |
| 1995 | 3,807 | 3,282 | 2,681 | 3,554 | 4,412 | 4,480 | 5,331 | 5,342 | 4,054 | 3,563 | 3,037 | 2,689 |
| 1996 | 2,178 | 1,928 | 2,210 | 2,463 | 2,499 | 2,820 | 3,800 | 4,458 | 3,791 | 4,345 | 3,520 | 3,360 |
| 1997 | 3,168 | 2,205 | 2,154 | 2,444 | 3,026 | 3,321 | 3,910 | 4,209 | 4,432 | 4,103 | 3,708 | 3,513 |
| 1998 | 3,569 | 3,488 | 3,712 | 3,573 | 3,961 | 3,889 | 3,694 | 4,055 | 4,268 | 3,708 | 3,264 | 2,465 |
| 1999 | 2,290 | 2,237 | 2,312 | 2,887 | 3,168 | 3,346 | 3,096 | 3,018 | 3,024 | 2,994 | 2,565 | 2,337 |
| 2000 | 1,999 | 1,839 | 1,722 | 1,812 | 2,000 | 2,627 | 3,416 | 3,415 | 3,086 | 2,559 | 2,457 | 2,248 |
| 2001 | 2,050 | 1,864 | 2,144 | 2,086 | 2,910 | 3,112 | 2,610 | 3,024 | 2,664 | 2,522 | 2,328 | 1,987 |
| 2002 | 2,054 | 2,379 | 2,516 | 2,910 | 3,006 | 2,692 | 2,464 | 2,727 | 2,628 | 3,075 | 2,498 | 2,204 |
| 2003 | 1,956 | 1,606 | 1,358 | 1,480 | 2,004 | 2,632 | 2,717 | 2,682 | 3,193 | 3,869 | 2,806 | 2,187 |
| 2004 | 1,795 | 1,567 | 2,189 | 2,092 | 1,957 | 1,698 | 2,432 | 2,794 | 3,251 | 2,008 | 2,037 | 1,859 |
| 2005 | 1,977 | 2,247 | 1,949 | 2,514 | 3,075 | 2,646 | 2,819 | 3,395 | 3,110 | 2,970 | 3,087 | 2,636 |
| 2006 | 2,291 | 2,495 | 2,657 | 2,919 | 3,729 | 3,461 | 3,180 | 2,937 | 3,467 | 3,528 | 3,348 | 2,293 |
| 2007 | 2,088 | 2,632 | 3,128 | 3,659 | 4,211 | 4,162 | 4,186 | 4,024 | 3,947 | 4,211 | 3,675 | 2,712 |
| 2008 | 2,549 | 2,682 | 2,776 | 3,625 | 3,890 | 3,762 | 3,663 | 4,386 | 4,951 | 4,210 | 3,372 | 2,994 |
| 2009 | 3,153 | 3,289 | 3,031 | 2,792 | 3,102 | 2,931 | 3,050 | 2,650 | 2,805 | 3,368 | 2,983 | 2,801 |
| 2010 | 2,933 | 3,197 | 3,141 | 2,750 | 2,962 | 3,290 | 3,405 | 3,589 | 4,174 | 4,682 | 3,529 | 3,061 |
| 2011 | 2,932 | 2,454 | 2,750 | 2,925 | 3,643 | 3,745 | 3,306 | 2,604 | 2,451 | 2,632 | 2,912 | 3,515 |
| 2012 | 3,475 | 3,294 | 3,894 | 4,259 | 3,909 | 3,590 | 3,852 | 3,796 | 3,767 | 4,341 | 4,605 | 4,082 |
| 2013 | 3,760 | 4,178 | ||||||||||
| - = 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 |