Quarter	Billions of US Dollars
1993-07-01	1.26984
1993-10-01	1.25294
1994-01-01	1.31847
1994-04-01	1.33113
1994-07-01	1.33220
1994-10-01	1.32583
1995-01-01	1.34458
1995-04-01	1.34895
1995-07-01	1.32688
1995-10-01	1.32056
1996-01-01	1.33829
1996-04-01	1.33143
1996-07-01	1.33650
1996-10-01	1.32658
1997-01-01	1.27931
1997-04-01	1.30050
1997-07-01	0.91832
1997-10-01	0.70988
1998-01-01	0.82568
1998-04-01	0.76146
1998-07-01	0.81436
1998-10-01	0.87245
1999-01-01	0.86364
1999-04-01	0.86702
1999-07-01	0.77947
1999-10-01	0.85244
2000-01-01	0.87130
2000-04-01	0.84200
2000-07-01	0.83244
2000-10-01	0.80568
2001-01-01	0.77008
2001-04-01	0.76271
2001-07-01	0.82644
2001-10-01	0.81634
2002-01-01	0.81189
2002-04-01	0.85005
2002-07-01	0.83755
2002-10-01	0.84122
2003-01-01	0.83774
2003-04-01	0.87779
2003-07-01	0.89735
2003-10-01	0.90545
2004-01-01	0.90965
2004-04-01	0.87678
2004-07-01	0.84078
2004-10-01	0.89213
2005-01-01	0.90936
2005-04-01	0.98290
2005-07-01	1.08478
2005-10-01	1.19591
2006-01-01	1.25873
2006-04-01	1.36216
2006-07-01	1.49402
2006-10-01	1.68938
2007-01-01	1.71007
2007-04-01	1.79920
2007-07-01	1.85029
2007-10-01	1.92763
2008-01-01	2.04897
2008-04-01	2.19648
2008-07-01	2.33947
2008-10-01	2.27941
2009-01-01	2.24202
2009-04-01	2.69415
2009-07-01	2.73189
2009-10-01	2.74751
2010-01-01	2.83213
2010-04-01	2.82597
2010-07-01	2.81710
2010-10-01	2.96698
2011-01-01	4.25321
2011-04-01	4.15788
2011-07-01	4.00557
2011-10-01	4.27385
2012-01-01	5.11438
2012-04-01	4.78565
2012-07-01	5.05221
2012-10-01	6.06411
2013-01-01	6.54549
2013-04-01	6.14651
2013-07-01	6.15861
2013-10-01	5.89155
2014-01-01	5.37903
2014-04-01	5.02613
2014-07-01	5.34771
2014-10-01	5.16376
2015-01-01	4.68169
2015-04-01	4.89597