Quarterly Billions of US Dollars
1987-01-01 9.077
1987-04-01 9.375
1987-07-01 9.579
1987-10-01 10.194
1988-01-01 10.277
1988-04-01 11.181
1988-07-01 12.256
1988-10-01 13.827
1989-01-01 14.636
1989-04-01 15.002
1989-07-01 15.631
1989-10-01 16.430
1990-01-01 16.428
1990-04-01 16.880
1990-07-01 16.847
1990-10-01 16.558
1991-01-01 15.674
1991-04-01 15.362
1991-07-01 15.296
1991-10-01 15.369
1992-01-01 13.564
1992-04-01 12.641
1992-07-01 12.934
1992-10-01 12.388
1993-01-01 11.383
1993-04-01 10.830
1993-07-01 11.120
1993-10-01 11.048
1994-01-01 10.538
1994-04-01 10.001
1994-07-01 10.521
1994-10-01 10.326
1995-01-01 11.083
1995-04-01 11.528
1995-07-01 11.065
1995-10-01 10.365
1996-01-01 11.503
1996-04-01 12.077
1996-07-01 13.151
1996-10-01 14.759
1997-01-01 15.091
1997-04-01 16.692
1997-07-01 17.192
1997-10-01 17.721
1998-01-01 20.034
1998-04-01 21.361
1998-07-01 21.770
1998-10-01 22.233
1999-01-01 25.434
1999-04-01 27.633
1999-07-01 29.791
1999-10-01 28.529
2000-01-01 27.960
2000-04-01 26.955
2000-07-01 25.283
2000-10-01 26.424
2001-01-01 25.417
2001-04-01 24.592
2001-07-01 25.788
2001-10-01 27.075
2002-01-01 28.856
2002-04-01 27.462
2002-07-01 27.687
2002-10-01 27.546
2003-01-01 29.136
2003-04-01 29.325
2003-07-01 29.032
2003-10-01 29.737
2004-01-01 28.243
2004-04-01 31.357
2004-07-01 32.611
2004-10-01 32.974
2005-01-01 32.146
2005-04-01 30.912
2005-07-01 31.787
2005-10-01 34.439
2006-01-01 39.556
2006-04-01 39.963
2006-07-01 43.859
2006-10-01 48.406
2007-01-01 54.902
2007-04-01 63.975
2007-07-01 64.507
2007-10-01 70.568
2008-01-01 82.728
2008-04-01 101.496
2008-07-01 106.838
2008-10-01 96.499
2009-01-01 90.439
2009-04-01 86.502
2009-07-01 85.015
2009-10-01 81.965
2010-01-01 80.056
2010-04-01 85.638
2010-07-01 95.140
2010-10-01 98.864
2011-01-01 111.033
2011-04-01 109.657
2011-07-01 114.791
2011-10-01 126.210
2012-01-01 142.768
2012-04-01 139.688
2012-07-01 146.262
2012-10-01 154.641
2013-01-01 151.021
2013-04-01 160.800
2013-07-01 188.920
2013-10-01 211.488
2014-01-01 215.597
2014-04-01 232.582
2014-07-01 248.415
2014-10-01 247.956
2015-01-01 253.098
2015-04-01 266.187