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| Refining District Texas Gulf Coast Gas Plant Production of Isobutane-Isobutylene (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 63 | 59 | 73 | 87 | 103 | 99 | 77 | 77 | 76 | 58 | 62 | 73 |
| 1994 | 90 | 92 | 78 | 78 | 83 | 90 | 95 | 109 | 97 | 58 | 71 | 56 |
| 1995 | 77 | 53 | 49 | 99 | 98 | 79 | 72 | 59 | 71 | 74 | 66 | 54 |
| 1996 | 72 | 64 | 79 | 93 | 89 | 90 | 82 | 74 | 72 | 56 | 63 | 45 |
| 1997 | 50 | 62 | 69 | 88 | 57 | 68 | 71 | 74 | 70 | 77 | 65 | 81 |
| 1998 | 69 | 57 | 59 | 68 | 58 | 73 | 70 | 65 | 65 | 72 | 76 | 71 |
| 1999 | 70 | 84 | 72 | 72 | 71 | 71 | 70 | 69 | 66 | 71 | 63 | 67 |
| 2000 | 69 | 77 | 65 | 68 | 70 | 81 | 83 | 73 | 71 | 72 | 70 | 67 |
| 2001 | 56 | 68 | 71 | 75 | 91 | 83 | 77 | 76 | 70 | 74 | 75 | 72 |
| 2002 | 67 | 60 | 69 | 71 | 78 | 72 | 68 | 93 | 72 | 91 | 99 | 75 |
| 2003 | 69 | 70 | 71 | 85 | 67 | 46 | 64 | 66 | 70 | 58 | 54 | 57 |
| 2004 | 52 | 55 | 56 | 55 | 53 | 47 | 54 | 38 | 39 | 38 | 42 | 36 |
| 2005 | 33 | 33 | 32 | 35 | 54 | 58 | 81 | 76 | 55 | 66 | 53 | 53 |
| 2006 | 53 | 58 | 66 | 49 | 54 | 49 | 53 | 56 | 53 | 49 | 51 | 32 |
| 2007 | 56 | 70 | 62 | 72 | 62 | 50 | 59 | 60 | 72 | 58 | 55 | 58 |
| 2008 | 63 | 66 | 77 | 56 | 55 | 49 | 45 | 49 | 32 | 57 | 63 | 61 |
| 2009 | 74 | 63 | 51 | 57 | 72 | 74 | 79 | 72 | 70 | 72 | 68 | 61 |
| 2010 | 51 | 48 | 58 | 61 | 75 | 82 | 75 | 73 | 63 | 62 | 62 | 71 |
| 2011 | 64 | 56 | 77 | 78 | 78 | 72 | 69 | 77 | 83 | 84 | 85 | 86 |
| 2012 | 71 | 73 | 64 | 88 | 77 | 73 | 92 | 85 | 77 | 77 | 88 | 81 |
| 2013 | 83 | 62 | ||||||||||
| - = 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 |