Quarterly Billions of US Dollars
1987-01-01 8.324
1987-04-01 8.465
1987-07-01 9.117
1987-10-01 9.228
1988-01-01 8.862
1988-04-01 9.400
1988-07-01 9.555
1988-10-01 9.324
1989-01-01 9.803
1989-04-01 9.517
1989-07-01 9.409
1989-10-01 9.643
1990-01-01 8.921
1990-04-01 8.916
1990-07-01 9.199
1990-10-01 9.011
1991-01-01 8.022
1991-04-01 7.641
1991-07-01 7.625
1991-10-01 7.510
1992-01-01 6.035
1992-04-01 5.964
1992-07-01 6.094
1992-10-01 5.315
1993-01-01 4.782
1993-04-01 3.805
1993-07-01 3.594
1993-10-01 3.341
1994-01-01 3.150
1994-04-01 2.855
1994-07-01 2.721
1994-10-01 2.406
1995-01-01 2.364
1995-04-01 2.268
1995-07-01 2.242
1995-10-01 2.292
1996-01-01 2.748
1996-04-01 2.739
1996-07-01 2.849
1996-10-01 3.607
1997-01-01 3.806
1997-04-01 3.994
1997-07-01 6.399
1997-10-01 6.899
1998-01-01 7.443
1998-04-01 10.071
1998-07-01 11.015
1998-10-01 10.622
1999-01-01 11.057
1999-04-01 11.820
1999-07-01 12.494
1999-10-01 11.912
2000-01-01 12.837
2000-04-01 14.204
2000-07-01 14.547
2000-10-01 15.698
2001-01-01 17.181
2001-04-01 17.249
2001-07-01 18.064
2001-10-01 18.929
2002-01-01 18.999
2002-04-01 20.508
2002-07-01 20.266
2002-10-01 21.290
2003-01-01 24.626
2003-04-01 26.450
2003-07-01 29.559
2003-10-01 33.049
2004-01-01 33.610
2004-04-01 34.262
2004-07-01 34.641
2004-10-01 41.392
2005-01-01 41.404
2005-04-01 41.656
2005-07-01 41.286
2005-10-01 44.001
2006-01-01 47.936
2006-04-01 56.739
2006-07-01 60.866
2006-10-01 67.781
2007-01-01 73.980
2007-04-01 74.370
2007-07-01 79.771
2007-10-01 91.144
2008-01-01 108.637
2008-04-01 117.604
2008-07-01 109.918
2008-10-01 109.153
2009-01-01 107.601
2009-04-01 113.978
2009-07-01 122.385
2009-10-01 119.286
2010-01-01 121.311
2010-04-01 122.391
2010-07-01 136.678
2010-10-01 135.995
2011-01-01 159.118
2011-04-01 167.386
2011-07-01 166.034
2011-10-01 172.787
2012-01-01 196.656
2012-04-01 201.455
2012-07-01 207.413
2012-10-01 204.478
2013-01-01 201.499
2013-04-01 209.094
2013-07-01 212.372
2013-10-01 218.758
2014-01-01 221.588
2014-04-01 214.416
2014-07-01 203.845
2014-10-01 200.787
2015-01-01 190.453
2015-04-01 187.777