Quarterly Millions of US Dollars
1987-04-01 11532
1987-07-01 12138
1987-10-01 14401
1988-01-01 15361
1988-04-01 17385
1988-07-01 19302
1988-10-01 25515
1989-01-01 26103
1989-04-01 34717
1989-07-01 35058
1989-10-01 32432
1990-01-01 34959
1990-04-01 34501
1990-07-01 38051
1990-10-01 33264
1991-01-01 34464
1991-04-01 39533
1991-07-01 45148
1991-10-01 45805
1992-01-01 49308
1992-04-01 60804
1992-07-01 57628
1992-10-01 61351
1993-01-01 63161
1993-04-01 68433
1993-07-01 69003
1993-10-01 68596
1994-01-01 72250
1994-04-01 70552
1994-07-01 67644
1994-10-01 78075
1995-01-01 81315
1995-04-01 84937
1995-07-01 74180
1995-10-01 86709
1996-01-01 87608
1996-04-01 96042
1996-07-01 102849
1996-10-01 110162
1997-01-01 114906
1997-04-01 110518
1997-07-01 106554
1997-10-01 105768
1998-01-01 111868
1998-04-01 110802
1998-07-01 119657
1998-10-01 125232
1999-01-01 121463
1999-04-01 119255
1999-07-01 121157
1999-10-01 126451
2000-01-01 135408
2000-04-01 133019
2000-07-01 129939
2000-10-01 123388
2001-01-01 130161
2001-04-01 122403
2001-07-01 125285
2001-10-01 124292
2002-01-01 131862
2002-04-01 138818
2002-07-01 136945
2002-10-01 141232
2003-01-01 146050
2003-04-01 149080
2003-07-01 157111
2003-10-01 161828
2004-01-01 173672
2004-04-01 172573
2004-07-01 174702
2004-10-01 191553
2005-01-01 194575
2005-04-01 197164
2005-07-01 187866
2005-10-01 192245
2006-01-01 198131
2006-04-01 200672
2006-07-01 195127
2006-10-01 201162
2007-01-01 197784
2007-04-01 199079
2007-07-01 197153
2007-10-01 199372
2008-01-01 218283
2008-04-01 222818
2008-07-01 208061
2008-10-01 205285
2009-01-01 202187
2009-04-01 208986
2009-07-01 210141
2009-10-01 217767
2010-01-01 226226
2010-04-01 225330
2010-07-01 232209
2010-10-01 257969
2011-01-01 258804
2011-04-01 269100
2011-07-01 258003
2011-10-01 267008
2012-01-01 279336
2012-04-01 288050
2012-07-01 299965
2012-10-01 310867
2013-01-01 313580
2013-04-01 314731
2013-07-01 324794
2013-10-01 327139
2014-01-01 325818
2014-04-01 340332
2014-07-01 332850
2014-10-01 327467
2015-01-01 336123
2015-04-01 341209
2015-07-01 320357
2015-10-01 320532
2016-01-01 329719
2016-04-01 333344
2016-07-01 338541
2016-10-01 326506
2017-01-01 358362
2017-04-01 359448
2017-07-01 359511
2017-10-01 369484
2018-01-01 379499