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 2.791
2000-04-01 3.129
2000-07-01 3.018
2000-10-01 2.514
2001-01-01 2.343
2001-04-01 2.577
2001-07-01 3.169
2001-10-01 2.531
2002-01-01 2.759
2002-04-01 4.147
2002-07-01 4.179
2002-10-01 4.593
2003-01-01 3.991
2003-04-01 6.287
2003-07-01 8.192
2003-10-01 10.744
2004-01-01 13.791
2004-04-01 15.655
2004-07-01 19.279
2004-10-01 23.618
2005-01-01 26.517
2005-04-01 25.804
2005-07-01 26.801
2005-10-01 27.968
2006-01-01 31.682
2006-04-01 34.366
2006-07-01 37.953
2006-10-01 44.775
2007-01-01 54.041
2007-04-01 58.433
2007-07-01 60.588
2007-10-01 67.171
2008-01-01 76.326
2008-04-01 82.392
2008-07-01 73.322
2008-10-01 67.572
2009-01-01 61.915
2009-04-01 64.375
2009-07-01 66.056
2009-10-01 61.951
2010-01-01 66.347
2010-04-01 100.259
2010-07-01 117.250
2010-10-01 141.351
2011-01-01 148.328
2011-04-01 157.257
2011-07-01 142.533
2011-10-01 147.763
2012-01-01 147.773
2012-04-01 131.474
2012-07-01 115.976
2012-10-01 116.658
2013-01-01 108.756
2013-04-01 108.108
2013-07-01 104.725
2013-10-01 106.069
2014-01-01 105.406
2014-04-01 98.389
2014-07-01 86.872
2014-10-01 86.757
2015-01-01 76.153
2015-04-01 89.281