Quarterly Billions of US Dollars
1987-01-01 1.254
1987-04-01 1.032
1987-07-01 1.032
1987-10-01 1.077
1988-01-01 0.980
1988-04-01 0.929
1988-07-01 0.743
1988-10-01 0.650
1989-01-01 0.566
1989-04-01 0.614
1989-07-01 0.560
1989-10-01 0.569
1990-01-01 0.541
1990-04-01 0.429
1990-07-01 0.360
1990-10-01 1.738
1991-01-01 0.340
1991-04-01 0.465
1991-07-01 0.773
1991-10-01 1.330
1992-01-01 0.936
1992-04-01 1.874
1992-07-01 1.916
1992-10-01 2.648
1993-01-01 3.225
1993-04-01 5.210
1993-07-01 11.614
1993-10-01 13.264
1994-01-01 15.704
1994-04-01 16.825
1994-07-01 17.340
1994-10-01 17.968
1995-01-01 15.871
1995-04-01 16.330
1995-07-01 17.378
1995-10-01 17.597
1996-01-01 19.326
1996-04-01 23.510
1996-07-01 19.968
1996-10-01 20.731
1997-01-01 21.178
1997-04-01 20.939
1997-07-01 24.038
1997-10-01 21.240
1998-01-01 23.490
1998-04-01 25.476
1998-07-01 22.963
1998-10-01 20.469
1999-01-01 18.930
1999-04-01 19.339
1999-07-01 19.429
1999-10-01 19.807
2000-01-01 20.902
2000-04-01 19.226
2000-07-01 19.034
2000-10-01 19.553
2001-01-01 19.383
2001-04-01 19.537
2001-07-01 17.256
2001-10-01 16.819
2002-01-01 16.381
2002-04-01 16.523
2002-07-01 15.597
2002-10-01 15.629
2003-01-01 17.518
2003-04-01 18.326
2003-07-01 18.055
2003-10-01 17.774
2004-01-01 17.596
2004-04-01 17.525
2004-07-01 17.384
2004-10-01 17.047
2005-01-01 16.272
2005-04-01 16.527
2005-07-01 16.139
2005-10-01 17.704
2006-01-01 19.708
2006-04-01 20.048
2006-07-01 20.443
2006-10-01 21.333
2007-01-01 23.862
2007-04-01 26.627
2007-07-01 25.816
2007-10-01 26.342
2008-01-01 27.932
2008-04-01 27.239
2008-07-01 25.120
2008-10-01 24.479
2009-01-01 23.523
2009-04-01 24.654
2009-07-01 26.381
2009-10-01 28.526
2010-01-01 33.669
2010-04-01 37.668
2010-07-01 44.247
2010-10-01 47.558
2011-01-01 53.347
2011-04-01 61.596
2011-07-01 61.768
2011-10-01 63.522
2012-01-01 73.927
2012-04-01 76.828
2012-07-01 84.958
2012-10-01 94.656
2013-01-01 101.989
2013-04-01 104.347
2013-07-01 108.634
2013-10-01 108.444
2014-01-01 110.858
2014-04-01 115.300
2014-07-01 117.185
2014-10-01 115.807
2015-01-01 107.712
2015-04-01 109.862