Quarter	Billions of US Dollars
1993-07-01	0.29736
1993-10-01	0.68016
1994-01-01	0.70411
1994-04-01	0.04530
1994-07-01	0.15534
1994-10-01	0.61492
1995-01-01	0.05511
1995-04-01	0.02469
1995-07-01	0.19858
1995-10-01	0.38077
1996-01-01	0.72609
1996-04-01	0.30259
1996-07-01	0.43637
1996-10-01	0.48782
1997-01-01	0.97540
1997-04-01	1.17786
1997-07-01	0.52699
1997-10-01	1.53718
1998-01-01	0.11848
1998-04-01	0.82821
1998-07-01	1.62885
1998-10-01	0.86849
1999-01-01	0.48634
1999-04-01	1.11710
1999-07-01	0.33386
1999-10-01	0.29752
2000-01-01	1.27256
2000-04-01	1.12776
2000-07-01	0.36104
2000-10-01	0.30046
2001-01-01	0.98418
2001-04-01	0.81290
2001-07-01	0.61274
2001-10-01	0.78592
2002-01-01	1.23076
2002-04-01	0.67287
2002-07-01	0.81563
2002-10-01	0.60616
2003-01-01	2.57545
2003-04-01	2.41550
2003-07-01	1.65917
2003-10-01	1.42033
2004-01-01	2.04064
2004-04-01	1.10730
2004-07-01	2.16648
2004-10-01	0.87523
2005-01-01	2.15225
2005-04-01	2.62945
2005-07-01	2.14949
2005-10-01	1.14220
2006-01-01	6.46868
2006-04-01	2.49887
2006-07-01	1.81875
2006-10-01	2.64637
2007-01-01	2.72837
2007-04-01	1.86356
2007-07-01	1.53240
2007-10-01	2.16049
2008-01-01	4.94828
2008-04-01	2.17732
2008-07-01	1.48618
2008-10-01	0.68397
2009-01-01	1.22955
2009-04-01	0.87243
2009-07-01	2.45890
2009-10-01	0.97777
2010-01-01	2.14998
2010-04-01	1.54181
2010-07-01	2.82665
2010-10-01	1.32989
2011-01-01	3.76635
2011-04-01	2.08013
2011-07-01	2.46685
2011-10-01	0.43685
2012-01-01	5.07909
2012-04-01	1.87088
2012-07-01	2.87817
2012-10-01	1.27650
2013-01-01	0.79936
2013-04-01	0.92459
2013-07-01	0.13237
2013-10-01	0.69140
2014-01-01	0.59130
2014-04-01	0.93019
2014-07-01	1.34445
2014-10-01	0.75392
2015-01-01	1.14362
2015-04-01	0.12171