Quarterly Billions of US Dollars
1987-01-01 5.482
1987-04-01 5.735
1987-07-01 5.636
1987-10-01 6.552
1988-01-01 6.125
1988-04-01 5.870
1988-07-01 6.142
1988-10-01 6.446
1989-01-01 6.174
1989-04-01 6.069
1989-07-01 6.157
1989-10-01 6.334
1990-01-01 6.339
1990-04-01 6.193
1990-07-01 6.914
1990-10-01 7.118
1991-01-01 7.524
1991-04-01 8.530
1991-07-01 8.882
1991-10-01 9.176
1992-01-01 9.380
1992-04-01 9.915
1992-07-01 10.797
1992-10-01 10.150
1993-01-01 10.748
1993-04-01 11.380
1993-07-01 12.357
1993-10-01 12.410
1994-01-01 13.895
1994-04-01 15.415
1994-07-01 16.898
1994-10-01 17.380
1995-01-01 20.092
1995-04-01 21.940
1995-07-01 22.349
1995-10-01 24.329
1996-01-01 26.164
1996-04-01 27.785
1996-07-01 32.281
1996-10-01 36.866
1997-01-01 38.890
1997-04-01 42.277
1997-07-01 43.850
1997-10-01 42.155
1998-01-01 40.461
1998-04-01 39.369
1998-07-01 38.280
1998-10-01 38.297
1999-01-01 36.783
1999-04-01 35.760
1999-07-01 34.857
1999-10-01 35.162
2000-01-01 35.765
2000-04-01 34.726
2000-07-01 33.532
2000-10-01 31.852
2001-01-01 30.425
2001-04-01 28.838
2001-07-01 25.855
2001-10-01 25.429
2002-01-01 24.283
2002-04-01 25.026
2002-07-01 25.104
2002-10-01 25.700
2003-01-01 26.643
2003-04-01 29.306
2003-07-01 31.731
2003-10-01 33.904
2004-01-01 38.867
2004-04-01 40.216
2004-07-01 41.981
2004-10-01 45.930
2005-01-01 48.784
2005-04-01 49.696
2005-07-01 51.838
2005-10-01 54.885
2006-01-01 56.155
2006-04-01 60.266
2006-07-01 64.609
2006-10-01 66.738
2007-01-01 71.589
2007-04-01 79.114
2007-07-01 82.056
2007-10-01 86.529
2008-01-01 89.629
2008-04-01 91.647
2008-07-01 90.692
2008-10-01 83.775
2009-01-01 84.502
2009-04-01 91.049
2009-07-01 94.711
2009-10-01 92.032
2010-01-01 93.139
2010-04-01 93.910
2010-07-01 97.396
2010-10-01 102.354
2011-01-01 108.157
2011-04-01 110.769
2011-07-01 109.775
2011-10-01 113.489
2012-01-01 119.686
2012-04-01 122.082
2012-07-01 133.037
2012-10-01 128.636
2013-01-01 132.271
2013-04-01 132.463
2013-07-01 142.687
2013-10-01 148.271
2014-01-01 152.593
2014-04-01 156.297
2014-07-01 158.171
2014-10-01 184.293
2015-01-01 183.623
2015-04-01 192.287