Quarterly Billions of US Dollars
1987-01-01 9.549
1987-04-01 9.389
1987-07-01 9.195
1987-10-01 10.056
1988-01-01 9.692
1988-04-01 9.408
1988-07-01 9.890
1988-10-01 10.338
1989-01-01 10.338
1989-04-01 10.122
1989-07-01 10.645
1989-10-01 11.054
1990-01-01 11.181
1990-04-01 10.920
1990-07-01 12.373
1990-10-01 14.271
1991-01-01 12.790
1991-04-01 13.732
1991-07-01 14.908
1991-10-01 16.301
1992-01-01 16.391
1992-04-01 18.246
1992-07-01 19.509
1992-10-01 20.023
1993-01-01 21.393
1993-04-01 22.866
1993-07-01 30.247
1993-10-01 31.877
1994-01-01 35.938
1994-04-01 36.689
1994-07-01 38.373
1994-10-01 40.049
1995-01-01 40.076
1995-04-01 41.441
1995-07-01 42.452
1995-10-01 44.176
1996-01-01 46.507
1996-04-01 49.687
1996-07-01 52.570
1996-10-01 57.903
1997-01-01 59.815
1997-04-01 64.244
1997-07-01 68.607
1997-10-01 65.095
1998-01-01 65.730
1998-04-01 66.959
1998-07-01 63.844
1998-10-01 62.913
1999-01-01 59.242
1999-04-01 58.567
1999-07-01 57.594
1999-10-01 57.678
2000-01-01 59.178
2000-04-01 58.256
2000-07-01 55.162
2000-10-01 52.525
2001-01-01 50.905
2001-04-01 49.354
2001-07-01 45.557
2001-10-01 46.064
2002-01-01 44.647
2002-04-01 45.201
2002-07-01 44.917
2002-10-01 44.829
2003-01-01 47.222
2003-04-01 51.206
2003-07-01 53.529
2003-10-01 55.511
2004-01-01 61.304
2004-04-01 62.000
2004-07-01 64.919
2004-10-01 69.893
2005-01-01 74.388
2005-04-01 76.352
2005-07-01 80.778
2005-10-01 88.968
2006-01-01 93.834
2006-04-01 102.329
2006-07-01 111.519
2006-10-01 122.482
2007-01-01 135.445
2007-04-01 151.413
2007-07-01 157.929
2007-10-01 163.660
2008-01-01 174.837
2008-04-01 178.355
2008-07-01 174.626
2008-10-01 160.049
2009-01-01 156.823
2009-04-01 168.557
2009-07-01 174.244
2009-10-01 173.548
2010-01-01 172.592
2010-04-01 171.934
2010-07-01 185.194
2010-10-01 196.588
2011-01-01 213.579
2011-04-01 224.404
2011-07-01 221.250
2011-10-01 226.137
2012-01-01 234.833
2012-04-01 239.612
2012-07-01 270.823
2012-10-01 291.522
2013-01-01 306.224
2013-04-01 319.130
2013-07-01 333.726
2013-10-01 347.937
2014-01-01 357.236
2014-04-01 375.562
2014-07-01 386.330
2014-10-01 419.170
2015-01-01 417.917
2015-04-01 431.970