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| Refining District Texas Inland Gas Plant Production of Isobutane-Isobutylene (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 33 | 33 | 34 | 32 | 31 |
| 1994 | 31 | 31 | 32 | 32 | 32 | 33 | 33 | 33 | 32 | 32 | 32 | 32 |
| 1995 | 31 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 34 | 33 | 33 | 32 |
| 1996 | 31 | 31 | 32 | 33 | 32 | 32 | 32 | 33 | 32 | 34 | 32 | 31 |
| 1997 | 30 | 31 | 31 | 31 | 32 | 30 | 31 | 32 | 31 | 31 | 31 | 32 |
| 1998 | 33 | 33 | 33 | 34 | 32 | 32 | 30 | 32 | 32 | 32 | 30 | 29 |
| 1999 | 30 | 31 | 31 | 31 | 31 | 32 | 32 | 31 | 32 | 32 | 32 | 31 |
| 2000 | 31 | 31 | 33 | 33 | 32 | 33 | 33 | 33 | 33 | 32 | 31 | 26 |
| 2001 | 25 | 32 | 34 | 32 | 34 | 35 | 34 | 36 | 36 | 37 | 35 | 35 |
| 2002 | 37 | 35 | 35 | 35 | 36 | 36 | 36 | 37 | 37 | 36 | 37 | 34 |
| 2003 | 34 | 36 | 36 | 36 | 34 | 35 | 37 | 37 | 38 | 37 | 38 | 37 |
| 2004 | 37 | 38 | 38 | 38 | 37 | 37 | 38 | 38 | 39 | 38 | 38 | 37 |
| 2005 | 37 | 38 | 38 | 39 | 38 | 38 | 39 | 38 | 33 | 38 | 38 | 36 |
| 2006 | 35 | 35 | 35 | 36 | 36 | 37 | 36 | 36 | 38 | 37 | 36 | 36 |
| 2007 | 34 | 35 | 36 | 35 | 36 | 38 | 38 | 38 | 39 | 39 | 39 | 38 |
| 2008 | 37 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 33 | 38 | 39 | 38 |
| 2009 | 39 | 38 | 39 | 39 | 40 | 40 | 39 | 39 | 39 | 39 | 40 | 38 |
| 2010 | 39 | 41 | 42 | 41 | 42 | 41 | 42 | 42 | 43 | 44 | 43 | 43 |
| 2011 | 43 | 40 | 45 | 44 | 46 | 46 | 48 | 48 | 48 | 49 | 51 | 48 |
| 2012 | 50 | 50 | 49 | 52 | 53 | 56 | 58 | 59 | 62 | 62 | 63 | 61 |
| 2013 | 62 | 66 | ||||||||||
| - = 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 |