Quarter	Billions of US Dollars
1993-07-01	2.1776
1993-10-01	2.1898
1994-01-01	2.3479
1994-04-01	2.4387
1994-07-01	2.6148
1994-10-01	2.5350
1995-01-01	3.0288
1995-04-01	3.0383
1995-07-01	2.6344
1995-10-01	2.6745
1996-01-01	2.5971
1996-04-01	2.5309
1996-07-01	2.4996
1996-10-01	2.4039
1997-01-01	2.3867
1997-04-01	2.5534
1997-07-01	2.3469
1997-10-01	1.9608
1998-01-01	1.7348
1998-04-01	2.2108
1998-07-01	2.4814
1998-10-01	2.6703
1999-01-01	3.3279
1999-04-01	3.2179
1999-07-01	3.3178
1999-10-01	3.0729
2000-01-01	3.0806
2000-04-01	3.0829
2000-07-01	3.0192
2000-10-01	3.8227
2001-01-01	3.6616
2001-04-01	3.6978
2001-07-01	3.8966
2001-10-01	3.6650
2002-01-01	3.8074
2002-04-01	4.2328
2002-07-01	4.3874
2002-10-01	4.8746
2003-01-01	5.0121
2003-04-01	5.6855
2003-07-01	7.0012
2003-10-01	8.0785
2004-01-01	7.6486
2004-04-01	7.6137
2004-07-01	8.3131
2004-10-01	9.5650
2005-01-01	9.6420
2005-04-01	9.2067
2005-07-01	9.0917
2005-10-01	9.1025
2006-01-01	9.3116
2006-04-01	9.9198
2006-07-01	9.8785
2006-10-01	12.2045
2007-01-01	11.8099
2007-04-01	12.1356
2007-07-01	12.5274
2007-10-01	12.7904
2008-01-01	17.2030
2008-04-01	16.6578
2008-07-01	15.1701
2008-10-01	14.7908
2009-01-01	13.4962
2009-04-01	13.9404
2009-07-01	14.2548
2009-10-01	13.6267
2010-01-01	12.9282
2010-04-01	12.1259
2010-07-01	13.3302
2010-10-01	11.8017
2011-01-01	10.5285
2011-04-01	11.9117
2011-07-01	10.7306
2011-10-01	10.2409
2012-01-01	10.3388
2012-04-01	10.1396
2012-07-01	9.8617
2012-10-01	10.0418
2013-01-01	10.3192
2013-04-01	9.9903
2013-07-01	9.5688
2013-10-01	9.9125
2014-01-01	10.7677
2014-04-01	11.2806
2014-07-01	10.9579
2014-10-01	9.9361
2015-01-01	8.6015
2015-04-01	8.7225