Quarterly Billions of US Dollars
1987-01-01 1.899
1987-04-01 2.039
1987-07-01 2.571
1987-10-01 2.909
1988-01-01 4.150
1988-04-01 3.837
1988-07-01 4.429
1988-10-01 5.035
1989-01-01 5.504
1989-04-01 5.623
1989-07-01 6.110
1989-10-01 6.700
1990-01-01 6.978
1990-04-01 7.403
1990-07-01 8.408
1990-10-01 10.632
1991-01-01 8.399
1991-04-01 8.782
1991-07-01 9.650
1991-10-01 10.564
1992-01-01 10.366
1992-04-01 11.372
1992-07-01 11.930
1992-10-01 11.851
1993-01-01 11.107
1993-04-01 10.876
1993-07-01 12.571
1993-10-01 13.149
1994-01-01 14.282
1994-04-01 15.504
1994-07-01 16.264
1994-10-01 16.912
1995-01-01 18.252
1995-04-01 19.954
1995-07-01 21.730
1995-10-01 21.486
1996-01-01 22.648
1996-04-01 24.690
1996-07-01 25.598
1996-10-01 27.974
1997-01-01 27.517
1997-04-01 28.135
1997-07-01 28.793
1997-10-01 28.898
1998-01-01 32.451
1998-04-01 31.860
1998-07-01 29.924
1998-10-01 32.077
1999-01-01 30.697
1999-04-01 31.281
1999-07-01 34.730
1999-10-01 34.819
2000-01-01 33.079
2000-04-01 36.675
2000-07-01 37.602
2000-10-01 44.274
2001-01-01 46.666
2001-04-01 48.727
2001-07-01 53.579
2001-10-01 54.853
2002-01-01 55.690
2002-04-01 65.710
2002-07-01 56.351
2002-10-01 58.400
2003-01-01 56.085
2003-04-01 57.508
2003-07-01 62.004
2003-10-01 78.466
2004-01-01 73.170
2004-04-01 75.497
2004-07-01 75.873
2004-10-01 86.403
2005-01-01 90.353
2005-04-01 92.148
2005-07-01 97.263
2005-10-01 102.074
2006-01-01 115.819
2006-04-01 129.046
2006-07-01 131.082
2006-10-01 144.915
2007-01-01 149.712
2007-04-01 162.374
2007-07-01 174.828
2007-10-01 180.845
2008-01-01 182.742
2008-04-01 195.513
2008-07-01 185.713
2008-10-01 171.159
2009-01-01 165.072
2009-04-01 170.451
2009-07-01 168.639
2009-10-01 165.745
2010-01-01 161.238
2010-04-01 145.480
2010-07-01 154.837
2010-10-01 147.602
2011-01-01 149.234
2011-04-01 150.702
2011-07-01 140.988
2011-10-01 135.941
2012-01-01 145.287
2012-04-01 143.446
2012-07-01 143.242
2012-10-01 145.780
2013-01-01 141.600
2013-04-01 138.460
2013-07-01 141.502
2013-10-01 143.050
2014-01-01 144.453
2014-04-01 143.160
2014-07-01 135.926
2014-10-01 130.863
2015-01-01 125.770
2015-04-01 123.148