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| East Coast (PADD 1) Normal Butane-Butylene Stock Change (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 110 | -91 | 38 | 152 | -55 | 104 | -38 | 0 | 82 | 17 | -110 | 210 |
| 1982 | -113 | -229 | -143 | 94 | 61 | 234 | 73 | 54 | -17 | -50 | -153 | 1 |
| 1983 | -166 | -30 | -120 | 26 | 58 | -5 | 45 | 130 | 12 | 56 | -10 | -207 |
| 1984 | -45 | -75 | -9 | 20 | 66 | 73 | 121 | -134 | 39 | -88 | 218 | -208 |
| 1985 | 183 | -25 | -171 | 175 | 203 | 85 | -146 | -3 | 35 | 75 | -38 | 36 |
| 1986 | -93 | -50 | -92 | -7 | -1 | 141 | 25 | -126 | -267 | 141 | -104 | 114 |
| 1987 | 38 | 71 | 8 | 175 | 243 | -359 | 149 | 259 | -18 | -198 | -239 | 196 |
| 1988 | 54 | -63 | -50 | -87 | 51 | 216 | 98 | -87 | -40 | -232 | -79 | 282 |
| 1989 | -104 | 1 | -245 | -54 | -6 | 274 | 349 | 251 | -275 | -174 | -98 | 46 |
| 1990 | 322 | -534 | 436 | 47 | 280 | 474 | 362 | -101 | -242 | 71 | -152 | -608 |
| 1991 | -512 | -98 | 158 | 326 | 153 | 323 | 426 | 565 | -315 | 138 | -691 | -400 |
| 1992 | -476 | -248 | 277 | 337 | 236 | 469 | 540 | 462 | -389 | -378 | -618 | -343 |
| 1993 | -174 | -114 | 127 | 410 | 298 | 336 | 284 | 508 | -51 | -229 | -623 | -430 |
| 1994 | -552 | -192 | 141 | 488 | 375 | 176 | 215 | 523 | -76 | -79 | -528 | -489 |
| 1995 | -572 | -223 | -2 | 569 | 554 | 526 | 396 | 424 | -279 | -597 | -390 | -331 |
| 1996 | -380 | -446 | -51 | 420 | 415 | 328 | 390 | 467 | -234 | -242 | -609 | -632 |
| 1997 | -81 | -212 | 65 | 391 | 288 | 360 | 366 | 487 | -353 | 3 | -478 | -414 |
| 1998 | -548 | -108 | -172 | 512 | 408 | 259 | 518 | 572 | -250 | -91 | -397 | -201 |
| 1999 | -514 | -674 | -78 | 597 | 376 | 137 | 340 | 444 | -466 | -407 | 156 | -256 |
| 2000 | -700 | 216 | -451 | 469 | 210 | 102 | 725 | 481 | -375 | -251 | -567 | -389 |
| 2001 | -174 | 4 | -163 | 203 | 519 | 461 | 244 | 516 | -255 | -475 | -330 | -69 |
| 2002 | -330 | -336 | -319 | 498 | 447 | 408 | 199 | 555 | -361 | -348 | -587 | -154 |
| 2003 | -401 | -216 | -202 | 418 | 396 | 189 | 689 | 573 | -129 | -497 | -697 | -131 |
| 2004 | -32 | -498 | -156 | 401 | 391 | 413 | 417 | 424 | -242 | -172 | -612 | -551 |
| 2005 | -135 | -147 | 69 | 579 | 285 | 472 | 378 | 182 | -200 | -643 | -662 | -236 |
| 2006 | -39 | -244 | 81 | 394 | 508 | -25 | 167 | 1,138 | -79 | -446 | -500 | -99 |
| 2007 | -593 | -295 | -228 | 345 | 572 | 672 | 622 | 622 | -456 | -984 | -452 | 161 |
| 2008 | -48 | -511 | -282 | 261 | 539 | 608 | 693 | 671 | -317 | -919 | -674 | 69 |
| 2009 | -295 | -384 | -300 | 470 | 494 | 927 | 470 | 276 | 31 | -479 | -1,027 | -772 |
| 2010 | 94 | -254 | 41 | 159 | 406 | 501 | 466 | 511 | -500 | -457 | -55 | -602 |
| 2011 | -385 | -320 | 42 | 463 | 666 | 766 | 230 | 371 | 3 | -172 | -848 | -632 |
| 2012 | -262 | -545 | -350 | 94 | 466 | 365 | 544 | 363 | -517 | -546 | -47 | -426 |
| 2013 | -58 | -257 | ||||||||||
| - = 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 |