Quarterly Billions of US Dollars
1987-01-01 1.302
1987-04-01 1.553
1987-07-01 1.468
1987-10-01 1.537
1988-01-01 1.771
1988-04-01 1.645
1988-07-01 1.693
1988-10-01 1.773
1989-01-01 2.165
1989-04-01 2.224
1989-07-01 2.294
1989-10-01 2.653
1990-01-01 2.588
1990-04-01 2.626
1990-07-01 3.340
1990-10-01 3.443
1991-01-01 3.839
1991-04-01 4.117
1991-07-01 4.276
1991-10-01 4.940
1992-01-01 5.171
1992-04-01 5.973
1992-07-01 6.624
1992-10-01 6.791
1993-01-01 8.183
1993-04-01 9.309
1993-07-01 9.639
1993-10-01 10.558
1994-01-01 10.836
1994-04-01 11.205
1994-07-01 11.249
1994-10-01 11.148
1995-01-01 12.181
1995-04-01 12.132
1995-07-01 10.788
1995-10-01 10.085
1996-01-01 9.477
1996-04-01 8.714
1996-07-01 8.633
1996-10-01 8.095
1997-01-01 7.457
1997-04-01 7.296
1997-07-01 6.072
1997-10-01 5.365
1998-01-01 5.285
1998-04-01 4.523
1998-07-01 4.190
1998-10-01 3.731
1999-01-01 2.774
1999-04-01 2.588
1999-07-01 2.909
1999-10-01 3.198
2000-01-01 2.430
2000-04-01 2.424
2000-07-01 2.358
2000-10-01 1.816
2001-01-01 1.688
2001-04-01 1.684
2001-07-01 1.758
2001-10-01 1.622
2002-01-01 1.603
2002-04-01 1.783
2002-07-01 1.763
2002-10-01 1.800
2003-01-01 0.966
2003-04-01 0.824
2003-07-01 1.277
2003-10-01 1.370
2004-01-01 2.259
2004-04-01 2.239
2004-07-01 2.270
2004-10-01 2.949
2005-01-01 2.994
2005-04-01 2.833
2005-07-01 2.081
2005-10-01 1.524
2006-01-01 1.556
2006-04-01 1.625
2006-07-01 1.623
2006-10-01 2.419
2007-01-01 2.670
2007-04-01 2.732
2007-07-01 2.815
2007-10-01 2.870
2008-01-01 2.999
2008-04-01 3.625
2008-07-01 3.331
2008-10-01 7.272
2009-01-01 8.330
2009-04-01 11.059
2009-07-01 10.763
2009-10-01 10.163
2010-01-01 12.844
2010-04-01 53.575
2010-07-01 67.560
2010-10-01 93.422
2011-01-01 103.824
2011-04-01 118.261
2011-07-01 108.788
2011-10-01 116.238
2012-01-01 123.702
2012-04-01 109.151
2012-07-01 101.625
2012-10-01 101.696
2013-01-01 95.715
2013-04-01 93.738
2013-07-01 90.912
2013-10-01 92.429
2014-01-01 92.460
2014-04-01 84.736
2014-07-01 74.711
2014-10-01 74.921
2015-01-01 64.898
2015-04-01 74.952