Quarterly Millions of US Dollars
1988-04-01 15197
1988-07-01 16700
1988-10-01 19409
1989-01-01 18978
1989-04-01 18154
1989-07-01 20033
1989-10-01 21809
1990-01-01 21909
1990-04-01 24113
1990-07-01 25750
1990-10-01 25903
1991-01-01 26541
1991-04-01 27719
1991-07-01 28401
1991-10-01 28988
1992-01-01 29321
1992-04-01 29140
1992-07-01 26734
1992-10-01 25536
1993-01-01 25472
1993-04-01 23523
1993-07-01 20536
1993-10-01 22039
1994-01-01 22384
1994-04-01 24323
1994-07-01 24161
1994-10-01 25571
1995-01-01 24652
1995-04-01 24308
1995-07-01 26295
1995-10-01 27346
1996-01-01 28968
1996-04-01 30205
1996-07-01 32213
1996-10-01 34612
1997-01-01 33572
1997-04-01 33481
1997-07-01 35449
1997-10-01 31050
1998-01-01 32214
1998-04-01 31943
1998-07-01 32874
1998-10-01 34065
1999-01-01 36216
1999-04-01 39321
1999-07-01 38501
1999-10-01 40289
2000-01-01 39059
2000-04-01 37231
2000-07-01 36148
2000-10-01 37312
2001-01-01 34414
2001-04-01 37398
2001-07-01 38130
2001-10-01 40761
2002-01-01 44500
2002-04-01 47960
2002-07-01 49784
2002-10-01 48982
2003-01-01 53084
2003-04-01 60245
2003-07-01 63302
2003-10-01 76083
2004-01-01 80822
2004-04-01 77021
2004-07-01 84467
2004-10-01 94586
2005-01-01 105108
2005-04-01 111895
2005-07-01 115890
2005-10-01 119244
2006-01-01 120732
2006-04-01 136332
2006-07-01 146132
2006-10-01 153828
2007-01-01 167533
2007-04-01 188145
2007-07-01 194708
2007-10-01 190163
2008-01-01 233336
2008-04-01 296113
2008-07-01 245557
2008-10-01 278324
2009-01-01 285546
2009-04-01 328083
2009-07-01 367279
2009-10-01 378182
2010-01-01 374119
2010-04-01 350591
2010-07-01 414311
2010-10-01 443070
2011-01-01 442689
2011-04-01 473519
2011-07-01 448538
2011-10-01 468655
2012-01-01 513859
2012-04-01 500242
2012-07-01 533782
2012-10-01 513351
2013-01-01 505881
2013-04-01 460051
2013-07-01 468882
2013-10-01 469940
2014-01-01 489366
2014-04-01 521158
2014-07-01 511114
2014-10-01 508807
2015-01-01 488604
2015-04-01 495932
2015-07-01 461527
2015-10-01 492431
2016-01-01 521287
2016-04-01 514840
2016-07-01 530094
2016-10-01 494057
2017-01-01 531555
2017-04-01 513735
2017-07-01 517704
2017-10-01 540595
2018-01-01 542023