Quarterly Billions of US Dollars
1987-01-01 9.692
1987-04-01 11.521
1987-07-01 13.297
1987-10-01 15.487
1988-01-01 16.304
1988-04-01 16.297
1988-07-01 17.143
1988-10-01 18.558
1989-01-01 21.151
1989-04-01 23.785
1989-07-01 25.308
1989-10-01 26.984
1990-01-01 29.118
1990-04-01 30.042
1990-07-01 34.687
1990-10-01 34.968
1991-01-01 33.777
1991-04-01 33.176
1991-07-01 33.749
1991-10-01 34.601
1992-01-01 33.310
1992-04-01 34.282
1992-07-01 32.798
1992-10-01 31.881
1993-01-01 31.029
1993-04-01 30.721
1993-07-01 28.875
1993-10-01 29.237
1994-01-01 28.021
1994-04-01 27.665
1994-07-01 26.974
1994-10-01 27.369
1995-01-01 28.504
1995-04-01 28.694
1995-07-01 24.013
1995-10-01 23.506
1996-01-01 23.252
1996-04-01 23.298
1996-07-01 23.489
1996-10-01 22.490
1997-01-01 21.986
1997-04-01 22.382
1997-07-01 21.404
1997-10-01 19.980
1998-01-01 20.169
1998-04-01 19.627
1998-07-01 20.834
1998-10-01 21.259
1999-01-01 21.393
1999-04-01 21.465
1999-07-01 22.108
1999-10-01 21.522
2000-01-01 22.288
2000-04-01 23.292
2000-07-01 23.794
2000-10-01 24.338
2001-01-01 22.950
2001-04-01 24.139
2001-07-01 24.505
2001-10-01 25.506
2002-01-01 25.486
2002-04-01 27.556
2002-07-01 27.752
2002-10-01 28.386
2003-01-01 29.483
2003-04-01 30.902
2003-07-01 33.274
2003-10-01 34.368
2004-01-01 34.488
2004-04-01 35.370
2004-07-01 37.459
2004-10-01 40.494
2005-01-01 42.663
2005-04-01 42.298
2005-07-01 46.071
2005-10-01 46.651
2006-01-01 50.991
2006-04-01 52.414
2006-07-01 55.271
2006-10-01 54.564
2007-01-01 56.859
2007-04-01 57.681
2007-07-01 59.788
2007-10-01 62.009
2008-01-01 66.539
2008-04-01 65.691
2008-07-01 62.947
2008-10-01 66.014
2009-01-01 63.002
2009-04-01 64.255
2009-07-01 67.980
2009-10-01 64.288
2010-01-01 67.549
2010-04-01 63.588
2010-07-01 70.839
2010-10-01 72.089
2011-01-01 72.880
2011-04-01 72.829
2011-07-01 74.969
2011-10-01 75.201
2012-01-01 79.967
2012-04-01 78.670
2012-07-01 86.399
2012-10-01 86.307
2013-01-01 92.066
2013-04-01 91.794
2013-07-01 103.621
2013-10-01 106.242
2014-01-01 115.622
2014-04-01 125.520
2014-07-01 133.000
2014-10-01 131.726
2015-01-01 141.154
2015-04-01 140.976