Quarterly Millions of US Dollars
1987-01-01 2418
1987-04-01 3086
1987-07-01 4127
1987-10-01 3917
1988-01-01 6679
1988-04-01 8117
1988-07-01 9231
1988-10-01 8969
1989-01-01 12356
1989-04-01 11263
1989-07-01 12838
1989-10-01 10160
1990-01-01 78089
1990-04-01 83321
1990-07-01 93957
1990-10-01 100522
1991-01-01 103946
1991-04-01 102492
1991-07-01 111465
1991-10-01 116665
1992-01-01 100691
1992-04-01 113724
1992-07-01 102088
1992-10-01 96212
1993-01-01 93833
1993-04-01 103499
1993-07-01 108848
1993-10-01 113293
1994-01-01 112008
1994-04-01 115073
1994-07-01 120975
1994-10-01 124274
1995-01-01 128469
1995-04-01 138919
1995-07-01 141198
1995-10-01 151550
1996-01-01 151147
1996-04-01 157294
1996-07-01 158894
1996-10-01 172835
1997-01-01 165502
1997-04-01 178829
1997-07-01 187376
1997-10-01 193074
1998-01-01 209345
1998-04-01 212250
1998-07-01 230250
1998-10-01 235248
1999-01-01 257669
1999-04-01 267495
1999-07-01 274014
1999-10-01 289357
2000-01-01 292843
2000-04-01 300671
2000-07-01 307425
2000-10-01 333438
2001-01-01 322995
2001-04-01 321821
2001-07-01 331675
2001-10-01 340126
2002-01-01 346028
2002-04-01 377763
2002-07-01 409138
2002-10-01 424704
2003-01-01 368801
2003-04-01 398328
2003-07-01 421608
2003-10-01 449699
2004-01-01 461603
2004-04-01 424949
2004-07-01 428182
2004-10-01 452363
2005-01-01 450887
2005-04-01 437764
2005-07-01 434815
2005-10-01 433186
2006-01-01 438173
2006-04-01 458066
2006-07-01 465255
2006-10-01 484368
2007-01-01 482598
2007-04-01 484248
2007-07-01 495061
2007-10-01 506188
2008-01-01 505279
2008-04-01 493365
2008-07-01 429446
2008-10-01 375495
2009-01-01 381124
2009-04-01 463073
2009-07-01 489548
2009-10-01 489189
2010-01-01 469998
2010-04-01 461145
2010-07-01 508238
2010-10-01 473112
2011-01-01 536637
2011-04-01 537066
2011-07-01 524160
2011-10-01 531451
2012-01-01 552822
2012-04-01 550145
2012-07-01 593801
2012-10-01 581381
2013-01-01 548269
2013-04-01 576678
2013-07-01 588848
2013-10-01 613715
2014-01-01 545663
2014-04-01 569954
2014-07-01 565888
2014-10-01 558717
2015-01-01 524575
2015-04-01 532526
2015-07-01 528180
2015-10-01 516090
2016-01-01 519343
2016-04-01 529621
2016-07-01 541243
2016-10-01 481240
2017-01-01 488517
2017-04-01 498877
2017-07-01 523209
2017-10-01 532662
2018-01-01 544569