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| Rocky Mountain (PADD 4) Imports of Normal Butane-Butylene (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 241 | 296 | 203 | 92 | 124 | 174 | 167 | 233 | 223 | 265 | 348 | 397 |
| 1982 | 220 | 266 | 107 | 101 | 149 | 190 | 128 | 131 | 350 | 234 | 242 | 203 |
| 1983 | 271 | 212 | 169 | 98 | 137 | 164 | 118 | 215 | 176 | 228 | 155 | 167 |
| 1984 | 144 | 159 | 135 | 117 | 92 | 73 | 91 | 96 | 109 | 248 | 196 | 249 |
| 1985 | 168 | 149 | 134 | 72 | 68 | 79 | 137 | 159 | 152 | 116 | 129 | 147 |
| 1986 | 177 | 152 | 113 | 121 | 118 | 103 | 91 | 73 | 120 | 69 | 146 | 120 |
| 1987 | 150 | 151 | 147 | 131 | 82 | 99 | 102 | 74 | 86 | 154 | 126 | 164 |
| 1988 | 192 | 147 | 134 | 96 | 153 | 69 | 90 | 90 | 99 | 62 | 125 | 159 |
| 1989 | 167 | 82 | 111 | 60 | 51 | 38 | 57 | 63 | 25 | 102 | 134 | 137 |
| 1990 | 30 | 82 | 41 | 38 | 55 | 29 | 14 | 122 | 143 | 125 | 180 | 181 |
| 1991 | 134 | 81 | 26 | 40 | 43 | 91 | 66 | 71 | 121 | 149 | 166 | 128 |
| 1992 | 60 | 40 | 63 | 10 | 20 | 23 | 20 | 10 | 25 | 53 | 112 | 133 |
| 1993 | 108 | 77 | 75 | 10 | 30 | 11 | 36 | 59 | 108 | 142 | 189 | |
| 1994 | 123 | 67 | 28 | 15 | 26 | 40 | 41 | 43 | 100 | 180 | 180 | 169 |
| 1995 | 137 | 57 | 49 | 27 | 12 | 29 | 47 | 22 | 69 | 78 | 130 | 266 |
| 1996 | 204 | 143 | 91 | 76 | 31 | 13 | 60 | 13 | 121 | 125 | 201 | 199 |
| 1997 | 158 | 126 | 22 | 25 | 34 | 13 | 25 | 51 | 69 | 138 | 147 | 204 |
| 1998 | 191 | 131 | 66 | 37 | 20 | 45 | 43 | 7 | 22 | 71 | 70 | 51 |
| 1999 | 51 | 2 | 6 | 1 | 4 | 6 | 2 | 40 | 94 | 197 | 199 | 162 |
| 2000 | 434 | 127 | 91 | 38 | 83 | 41 | 94 | 105 | 92 | 90 | 141 | 165 |
| 2001 | 135 | 50 | 82 | 33 | 60 | 47 | 89 | 97 | 121 | 121 | 102 | 120 |
| 2002 | 139 | 43 | 50 | 24 | 77 | 54 | 80 | 89 | 91 | 111 | 100 | |
| 2003 | 113 | 59 | 24 | 41 | 78 | 75 | 118 | 132 | 90 | 122 | ||
| 2004 | 131 | 37 | 77 | 28 | 40 | 39 | 45 | 68 | 76 | 34 | 83 | 85 |
| 2005 | 92 | 17 | 16 | 27 | 14 | 58 | 30 | 47 | 37 | 92 | 74 | 88 |
| 2006 | 138 | 79 | 80 | 8 | 1 | 45 | 9 | 15 | 30 | 49 | 55 | 98 |
| 2007 | 63 | 21 | 22 | 3 | 33 | 17 | 18 | 55 | 83 | 73 | ||
| 2008 | 52 | 34 | 44 | 17 | 1 | 34 | 55 | 45 | ||||
| 2009 | 47 | 25 | 7 | 1 | 10 | 15 | 34 | |||||
| 2010 | 13 | 65 | 57 | 59 | 74 | 93 | 73 | 65 | 57 | 1 | 1 | 1 |
| 2011 | 4 | 1 | 1 | 1 | 2 | |||||||
| 2012 | 15 | 16 | 14 | 9 | 17 | 19 | 16 | 25 | 40 | 40 | 44 | |
| 2013 | 46 | 21 | 28 | |||||||||
| - = 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 |