Quarterly Billions of US Dollars
1987-01-01 1.148
1987-04-01 1.304
1987-07-01 1.327
1987-10-01 1.570
1988-01-01 1.764
1988-04-01 1.719
1988-07-01 1.708
1988-10-01 1.806
1989-01-01 1.740
1989-04-01 1.802
1989-07-01 1.973
1989-10-01 2.097
1990-01-01 2.169
1990-04-01 2.329
1990-07-01 2.470
1990-10-01 2.385
1991-01-01 2.300
1991-04-01 2.397
1991-07-01 2.544
1991-10-01 3.069
1992-01-01 2.920
1992-04-01 3.296
1992-07-01 3.484
1992-10-01 3.118
1993-01-01 2.922
1993-04-01 2.942
1993-07-01 3.091
1993-10-01 3.008
1994-01-01 2.959
1994-04-01 3.395
1994-07-01 3.724
1994-10-01 3.674
1995-01-01 4.032
1995-04-01 4.431
1995-07-01 4.694
1995-10-01 5.067
1996-01-01 5.147
1996-04-01 5.849
1996-07-01 5.932
1996-10-01 5.740
1997-01-01 5.335
1997-04-01 6.003
1997-07-01 5.801
1997-10-01 6.131
1998-01-01 6.191
1998-04-01 6.463
1998-07-01 6.605
1998-10-01 6.896
1999-01-01 6.660
1999-04-01 7.387
1999-07-01 8.028
1999-10-01 7.389
2000-01-01 7.017
2000-04-01 7.234
2000-07-01 6.547
2000-10-01 7.377
2001-01-01 7.133
2001-04-01 6.911
2001-07-01 7.245
2001-10-01 6.910
2002-01-01 6.468
2002-04-01 8.677
2002-07-01 8.764
2002-10-01 9.712
2003-01-01 9.710
2003-04-01 9.043
2003-07-01 9.249
2003-10-01 9.620
2004-01-01 9.747
2004-04-01 10.089
2004-07-01 11.394
2004-10-01 12.705
2005-01-01 12.072
2005-04-01 14.526
2005-07-01 14.466
2005-10-01 14.655
2006-01-01 15.852
2006-04-01 17.810
2006-07-01 17.758
2006-10-01 22.856
2007-01-01 24.397
2007-04-01 26.011
2007-07-01 31.056
2007-10-01 36.425
2008-01-01 39.136
2008-04-01 43.816
2008-07-01 39.731
2008-10-01 70.134
2009-01-01 74.056
2009-04-01 83.180
2009-07-01 87.051
2009-10-01 91.617
2010-01-01 85.166
2010-04-01 84.966
2010-07-01 102.193
2010-10-01 101.179
2011-01-01 107.289
2011-04-01 107.724
2011-07-01 100.159
2011-10-01 96.154
2012-01-01 98.685
2012-04-01 97.226
2012-07-01 104.675
2012-10-01 108.330
2013-01-01 105.805
2013-04-01 108.665
2013-07-01 114.208
2013-10-01 118.714
2014-01-01 116.854
2014-04-01 114.028
2014-07-01 106.299
2014-10-01 103.871
2015-01-01 94.249
2015-04-01 97.642