Quarterly Billions of US Dollars
1987-01-01 0.895
1987-04-01 0.829
1987-07-01 0.811
1987-10-01 0.883
1988-01-01 1.220
1988-04-01 1.239
1988-07-01 1.534
1988-10-01 1.739
1989-01-01 2.163
1989-04-01 2.099
1989-07-01 2.596
1989-10-01 2.797
1990-01-01 2.990
1990-04-01 3.013
1990-07-01 3.352
1990-10-01 3.774
1991-01-01 3.403
1991-04-01 3.228
1991-07-01 3.568
1991-10-01 3.879
1992-01-01 3.743
1992-04-01 3.872
1992-07-01 4.144
1992-10-01 3.864
1993-01-01 3.927
1993-04-01 3.730
1993-07-01 3.851
1993-10-01 3.681
1994-01-01 3.525
1994-04-01 3.565
1994-07-01 3.591
1994-10-01 3.674
1995-01-01 3.590
1995-04-01 3.634
1995-07-01 2.831
1995-10-01 2.472
1996-01-01 2.354
1996-04-01 2.371
1996-07-01 1.116
1996-10-01 1.007
1997-01-01 1.104
1997-04-01 1.437
1997-07-01 1.698
1997-10-01 1.928
1998-01-01 1.875
1998-04-01 1.779
1998-07-01 1.920
1998-10-01 1.902
1999-01-01 1.852
1999-04-01 1.680
1999-07-01 1.704
1999-10-01 1.791
2000-01-01 2.163
2000-04-01 2.306
2000-07-01 1.946
2000-10-01 1.842
2001-01-01 1.841
2001-04-01 2.192
2001-07-01 2.262
2001-10-01 3.035
2002-01-01 2.976
2002-04-01 3.295
2002-07-01 3.195
2002-10-01 3.331
2003-01-01 3.414
2003-04-01 4.061
2003-07-01 4.110
2003-10-01 5.505
2004-01-01 5.856
2004-04-01 5.689
2004-07-01 7.118
2004-10-01 7.899
2005-01-01 8.793
2005-04-01 9.538
2005-07-01 10.640
2005-10-01 12.620
2006-01-01 14.524
2006-04-01 15.483
2006-07-01 18.751
2006-10-01 21.557
2007-01-01 24.903
2007-04-01 29.740
2007-07-01 31.344
2007-10-01 32.386
2008-01-01 35.123
2008-04-01 36.682
2008-07-01 35.807
2008-10-01 33.921
2009-01-01 32.183
2009-04-01 32.747
2009-07-01 31.913
2009-10-01 31.972
2010-01-01 26.792
2010-04-01 23.761
2010-07-01 28.809
2010-10-01 29.941
2011-01-01 31.927
2011-04-01 34.028
2011-07-01 31.630
2011-10-01 31.922
2012-01-01 32.722
2012-04-01 35.064
2012-07-01 48.798
2012-10-01 64.424
2013-01-01 69.862
2013-04-01 75.998
2013-07-01 76.742
2013-10-01 83.451
2014-01-01 85.160
2014-04-01 92.099
2014-07-01 95.686
2014-10-01 99.827
2015-01-01 100.645
2015-04-01 101.398