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U.S. Isobutane-Isobutylene Imports (Thousand Barrels)
U.S. Isobutane-Isobutylene Imports (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1984 907 655 742 574 663 619 443 524 619 801 1,120 1,218
  1985 1,218 821 921 604 694 843 603 432 561 1,014 1,008 1,601
  1986 1,236 1,247 1,477 820 1,123 1,644 2,004 1,693 1,102 1,108 1,526 1,359
  1987 1,243 1,273 891 995 859 833 1,292 1,432 1,717 1,196 1,325 1,483
  1988 1,087 1,080 783 1,216 937 698 1,164 1,303 913 1,208 1,442 1,043
  1989 418 433 304 191 245 352 544 714 535 767 181 307
  1990 447 629 252 280 405 811 654 1,366 441 92 181 305
  1991 285 198 334 387 539 632 618 639 151 426 287 73
  1992 123 165 114 384 209 169 190 467 293 363 126 115
  1993 132 292 276 416 407 250 335 403 342 660 293 623
  1994 93 242 281 326 224 367 620 453 419 497 362 195
  1995 681 216 115 366 332 506 612 621 372 65 219 210
  1996 436 127 461 297 446 617 643 477 514 328 64 291
  1997 213 329 565 614 756 652 570 616 545 327 213 334
  1998 516 667 470 488 848 593 603 405 537 269 104 175
  1999 237 186 156 326 476 501 637 84 285 443 441 448
  2000 497 443 310 486 595 910 712 300 212 196 249 60
  2001 100 227 478 977 1,045 1,058 138 541 279 61 69 122
  2002 54 327 561 378 389 260 173 166 19 14 15 27
  2003 36 311 116 485 355 615 674 869 665 231 311 109
  2004 204 666 421 456 463 200 639 825 644 97 283 262
  2005 489 781 683 1,026 939 921 1,020 1,261 928 1,116 639 414
  2006 693 513 294 1,289 1,730 1,317 1,380 1,372 1,792 991 504 666
  2007 723 310 716 659 752 1,097 761 671 315 668 326 398
  2008 459 725 341 821 538 900 688 1,125 845 359

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 12/29/2008
Next Release Date: Last Week of January 2009

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