Quarter	Billions of US Dollars
1993-07-01	1.10592
1993-10-01	1.39819
1994-01-01	1.29450
1994-04-01	1.47305
1994-07-01	1.32945
1994-10-01	1.02629
1995-01-01	0.76417
1995-04-01	0.92914
1995-07-01	1.35074
1995-10-01	1.68558
1996-01-01	2.43832
1996-04-01	2.38146
1996-07-01	2.27893
1996-10-01	2.34493
1997-01-01	2.14643
1997-04-01	2.58376
1997-07-01	2.69862
1997-10-01	2.96902
1998-01-01	3.44809
1998-04-01	3.50456
1998-07-01	2.84083
1998-10-01	2.33683
1999-01-01	1.40077
1999-04-01	0.98806
1999-07-01	1.06411
1999-10-01	1.07630
2000-01-01	1.33631
2000-04-01	2.06183
2000-07-01	2.07777
2000-10-01	2.09926
2001-01-01	2.20576
2001-04-01	1.22154
2001-07-01	1.11983
2001-10-01	1.06786
2002-01-01	0.82745
2002-04-01	0.83535
2002-07-01	1.28344
2002-10-01	1.10235
2003-01-01	0.97816
2003-04-01	1.94588
2003-07-01	2.50762
2003-10-01	3.82535
2004-01-01	4.07108
2004-04-01	3.84646
2004-07-01	3.47312
2004-10-01	2.27130
2005-01-01	2.11837
2005-04-01	1.44565
2005-07-01	0.72034
2005-10-01	1.19521
2006-01-01	1.22078
2006-04-01	1.75863
2006-07-01	1.95924
2006-10-01	1.42493
2007-01-01	2.00935
2007-04-01	1.42103
2007-07-01	1.91856
2007-10-01	2.21351
2008-01-01	1.93309
2008-04-01	1.71000
2008-07-01	1.00100
2008-10-01	0.72700
2009-01-01	0.39700
2009-04-01	0.46587
2009-07-01	0.79104
2009-10-01	0.74789
2010-01-01	2.01860
2010-04-01	2.43471
2010-07-01	2.53632
2010-10-01	2.38330
2011-01-01	1.21041
2011-04-01	1.11331
2011-07-01	0.80000
2011-10-01	1.25000
2012-01-01	1.25000
2012-04-01	0.80000
2012-07-01	1.86000
2012-10-01	1.91000
2013-01-01	2.26000
2013-04-01	3.29375
2013-07-01	2.70792
2013-10-01	2.52567
2014-01-01	3.11343
2014-04-01	2.06436
2014-07-01	1.42552
2014-10-01	1.85525
2015-01-01	0.92680
2015-04-01	1.14432