Quarterly Billions of US Dollars
1990-01-01 8.064
1990-04-01 8.447
1990-07-01 8.731
1990-10-01 7.847
1991-01-01 7.241
1991-04-01 7.938
1991-07-01 8.458
1991-10-01 8.335
1992-01-01 8.784
1992-04-01 9.604
1992-07-01 9.938
1992-10-01 10.281
1993-01-01 10.648
1993-04-01 11.201
1993-07-01 11.837
1993-10-01 11.582
1994-01-01 12.018
1994-04-01 12.841
1994-07-01 13.573
1994-10-01 14.824
1995-01-01 14.282
1995-04-01 15.136
1995-07-01 15.255
1995-10-01 14.638
1996-01-01 15.463
1996-04-01 15.979
1996-07-01 16.544
1996-10-01 15.179
1997-01-01 14.994
1997-04-01 14.841
1997-07-01 13.321
1997-10-01 12.418
1998-01-01 12.040
1998-04-01 10.843
1998-07-01 10.763
1998-10-01 11.942
1999-01-01 12.476
1999-04-01 12.737
1999-07-01 12.719
1999-10-01 12.770
2000-01-01 11.388
2000-04-01 11.000
2000-07-01 9.762
2000-10-01 11.013
2001-01-01 9.533
2001-04-01 10.040
2001-07-01 10.296
2001-10-01 10.804
2002-01-01 10.888
2002-04-01 12.803
2002-07-01 12.544
2002-10-01 14.505
2003-01-01 15.377
2003-04-01 14.869
2003-07-01 15.658
2003-10-01 17.708
2004-01-01 18.040
2004-04-01 15.659
2004-07-01 17.653
2004-10-01 19.386
2005-01-01 17.568
2005-04-01 17.842
2005-07-01 18.007
2005-10-01 18.298
2006-01-01 15.412
2006-04-01 15.658
2006-07-01 17.413
2006-10-01 16.914
2007-01-01 17.400
2007-04-01 19.218
2007-07-01 19.266
2007-10-01 20.178
2008-01-01 21.046
2008-04-01 20.384
2008-07-01 16.614
2008-10-01 15.039
2009-01-01 15.452
2009-04-01 19.267
2009-07-01 20.705
2009-10-01 22.757
2010-01-01 24.220
2010-04-01 25.446
2010-07-01 30.006
2010-10-01 34.916
2011-01-01 38.091
2011-04-01 45.893
2011-07-01 44.851
2011-10-01 41.702
2012-01-01 45.854
2012-04-01 46.954
2012-07-01 52.195
2012-10-01 54.203
2013-01-01 56.633
2013-04-01 46.188
2013-07-01 49.809
2013-10-01 50.237
2014-01-01 53.110
2014-04-01 52.696
2014-07-01 47.496
2014-10-01 48.580
2015-01-01 46.790