Quarterly Millions of US Dollars
1988-04-01 48986
1988-07-01 50779
1988-10-01 58843
1989-01-01 54831
1989-04-01 52398
1989-07-01 53087
1989-10-01 56834
1990-01-01 53640
1990-04-01 58102
1990-07-01 61932
1990-10-01 61136
1991-01-01 61569
1991-04-01 64744
1991-07-01 71994
1991-10-01 73767
1992-01-01 72947
1992-04-01 77350
1992-07-01 75034
1992-10-01 76386
1993-01-01 85591
1993-04-01 82796
1993-07-01 88041
1993-10-01 97708
1994-01-01 97026
1994-04-01 98087
1994-07-01 97666
1994-10-01 106098
1995-01-01 103404
1995-04-01 106212
1995-07-01 110872
1995-10-01 113182
1996-01-01 115205
1996-04-01 117226
1996-07-01 119629
1996-10-01 123239
1997-01-01 117713
1997-04-01 115189
1997-07-01 111022
1997-10-01 97075
1998-01-01 97592
1998-04-01 90197
1998-07-01 87621
1998-10-01 89878
1999-01-01 89862
1999-04-01 90909
1999-07-01 87184
1999-10-01 82898
2000-01-01 77422
2000-04-01 77075
2000-07-01 67614
2000-10-01 70625
2001-01-01 61565
2001-04-01 62093
2001-07-01 60437
2001-10-01 60255
2002-01-01 59812
2002-04-01 66203
2002-07-01 67093
2002-10-01 68053
2003-01-01 72116
2003-04-01 81586
2003-07-01 78365
2003-10-01 85247
2004-01-01 89089
2004-04-01 80253
2004-07-01 81631
2004-10-01 90575
2005-01-01 90974
2005-04-01 90292
2005-07-01 88624
2005-10-01 86687
2006-01-01 88152
2006-04-01 86644
2006-07-01 90312
2006-10-01 90675
2007-01-01 92876
2007-04-01 101287
2007-07-01 108683
2007-10-01 107090
2008-01-01 113641
2008-04-01 125528
2008-07-01 110307
2008-10-01 105430
2009-01-01 123260
2009-04-01 167513
2009-07-01 196530
2009-10-01 216787
2010-01-01 248074
2010-04-01 255840
2010-07-01 302463
2010-10-01 328121
2011-01-01 361512
2011-04-01 385062
2011-07-01 398190
2011-10-01 442544
2012-01-01 471396
2012-04-01 480850
2012-07-01 517628
2012-10-01 521632
2013-01-01 544272
2013-04-01 479981
2013-07-01 504462
2013-10-01 494713
2014-01-01 542714
2014-04-01 569072
2014-07-01 548016
2014-10-01 538776
2015-01-01 526854
2015-04-01 518474
2015-07-01 499014
2015-10-01 517145
2016-01-01 570780
2016-04-01 559903
2016-07-01 595372
2016-10-01 556012
2017-01-01 605574
2017-04-01 624067
2017-07-01 632068
2017-10-01 647081
2018-01-01 639749