Quarterly Billions of US Dollars
1987-01-01 0.242
1987-04-01 0.175
1987-07-01 0.175
1987-10-01 0.194
1988-01-01 0.188
1988-04-01 0.179
1988-07-01 0.335
1988-10-01 0.470
1989-01-01 0.511
1989-04-01 0.682
1989-07-01 0.833
1989-10-01 1.001
1990-01-01 0.985
1990-04-01 1.258
1990-07-01 2.044
1990-10-01 2.717
1991-01-01 2.465
1991-04-01 2.519
1991-07-01 2.521
1991-10-01 2.594
1992-01-01 2.521
1992-04-01 2.425
1992-07-01 2.467
1992-10-01 2.364
1993-01-01 3.032
1993-04-01 3.184
1993-07-01 3.639
1993-10-01 3.845
1994-01-01 3.837
1994-04-01 4.099
1994-07-01 4.050
1994-10-01 4.444
1995-01-01 5.268
1995-04-01 6.106
1995-07-01 6.703
1995-10-01 8.348
1996-01-01 8.598
1996-04-01 9.051
1996-07-01 9.863
1996-10-01 11.079
1997-01-01 11.597
1997-04-01 12.738
1997-07-01 13.491
1997-10-01 15.143
1998-01-01 15.360
1998-04-01 19.251
1998-07-01 20.952
1998-10-01 24.368
1999-01-01 26.506
1999-04-01 33.539
1999-07-01 35.003
1999-10-01 37.385
2000-01-01 39.928
2000-04-01 42.150
2000-07-01 44.076
2000-10-01 45.227
2001-01-01 46.203
2001-04-01 48.183
2001-07-01 52.240
2001-10-01 55.271
2002-01-01 54.791
2002-04-01 62.879
2002-07-01 61.875
2002-10-01 66.797
2003-01-01 73.822
2003-04-01 80.084
2003-07-01 85.627
2003-10-01 106.377
2004-01-01 105.924
2004-04-01 111.589
2004-07-01 114.823
2004-10-01 138.189
2005-01-01 137.353
2005-04-01 145.779
2005-07-01 155.702
2005-10-01 172.794
2006-01-01 199.516
2006-04-01 240.535
2006-07-01 249.072
2006-10-01 281.832
2007-01-01 329.087
2007-04-01 371.363
2007-07-01 401.762
2007-10-01 438.873
2008-01-01 478.699
2008-04-01 522.120
2008-07-01 492.875
2008-10-01 526.770
2009-01-01 534.271
2009-04-01 585.294
2009-07-01 625.035
2009-10-01 630.063
2010-01-01 600.110
2010-04-01 557.606
2010-07-01 621.278
2010-10-01 607.877
2011-01-01 670.472
2011-04-01 693.962
2011-07-01 673.141
2011-10-01 656.930
2012-01-01 725.670
2012-04-01 683.847
2012-07-01 704.677
2012-10-01 740.550
2013-01-01 721.742
2013-04-01 736.695
2013-07-01 758.427
2013-10-01 777.908
2014-01-01 759.799
2014-04-01 753.016
2014-07-01 688.594
2014-10-01 657.551
2015-01-01 597.522
2015-04-01 609.476