Quarterly Billions of US Dollars
1987-01-01 5.111
1987-04-01 5.566
1987-07-01 5.702
1987-10-01 6.124
1988-01-01 6.937
1988-04-01 7.579
1988-07-01 7.634
1988-10-01 8.302
1989-01-01 8.900
1989-04-01 8.482
1989-07-01 8.877
1989-10-01 10.588
1990-01-01 10.498
1990-04-01 11.614
1990-07-01 12.685
1990-10-01 12.997
1991-01-01 12.158
1991-04-01 13.379
1991-07-01 14.314
1991-10-01 15.147
1992-01-01 15.380
1992-04-01 16.803
1992-07-01 18.875
1992-10-01 17.686
1993-01-01 19.244
1993-04-01 19.972
1993-07-01 23.948
1993-10-01 24.638
1994-01-01 26.775
1994-04-01 28.913
1994-07-01 28.861
1994-10-01 28.546
1995-01-01 29.023
1995-04-01 28.646
1995-07-01 28.652
1995-10-01 28.756
1996-01-01 30.548
1996-04-01 30.807
1996-07-01 32.309
1996-10-01 32.937
1997-01-01 31.806
1997-04-01 32.219
1997-07-01 32.014
1997-10-01 31.209
1998-01-01 29.807
1998-04-01 28.992
1998-07-01 28.888
1998-10-01 29.841
1999-01-01 28.434
1999-04-01 29.877
1999-07-01 32.440
1999-10-01 34.133
2000-01-01 36.914
2000-04-01 39.709
2000-07-01 39.485
2000-10-01 40.428
2001-01-01 36.461
2001-04-01 35.586
2001-07-01 36.538
2001-10-01 36.847
2002-01-01 36.844
2002-04-01 42.414
2002-07-01 42.094
2002-10-01 41.610
2003-01-01 42.909
2003-04-01 46.655
2003-07-01 50.757
2003-10-01 57.052
2004-01-01 56.970
2004-04-01 54.294
2004-07-01 58.087
2004-10-01 61.982
2005-01-01 60.439
2005-04-01 62.661
2005-07-01 62.370
2005-10-01 62.167
2006-01-01 67.222
2006-04-01 70.872
2006-07-01 72.522
2006-10-01 75.008
2007-01-01 78.930
2007-04-01 82.641
2007-07-01 86.204
2007-10-01 91.425
2008-01-01 94.930
2008-04-01 97.318
2008-07-01 94.815
2008-10-01 90.416
2009-01-01 91.677
2009-04-01 99.372
2009-07-01 111.536
2009-10-01 117.009
2010-01-01 116.491
2010-04-01 111.742
2010-07-01 121.382
2010-10-01 122.686
2011-01-01 127.380
2011-04-01 134.474
2011-07-01 129.245
2011-10-01 124.383
2012-01-01 127.991
2012-04-01 129.219
2012-07-01 133.198
2012-10-01 141.217
2013-01-01 143.617
2013-04-01 143.261
2013-07-01 147.062
2013-10-01 144.110
2014-01-01 145.846
2014-04-01 142.113
2014-07-01 138.531
2014-10-01 136.394
2015-01-01 125.570
2015-04-01 132.883