Quarter	Billions of US Dollars
1993-07-01	0.0300
1993-10-01	0.1031
1994-01-01	0.0448
1994-04-01	0.0072
1995-01-01	1.3430
1995-04-01	2.1099
1995-07-01	3.3681
1995-10-01	3.3416
1996-01-01	5.2369
1996-04-01	5.2401
1996-07-01	5.9732
1996-10-01	6.5795
1997-01-01	8.9698
1997-04-01	9.7650
1997-07-01	10.4651
1997-10-01	10.1847
1998-01-01	11.6069
1998-04-01	11.0057
1998-07-01	11.4222
1998-10-01	13.1862
1999-01-01	12.7017
1999-04-01	13.4293
1999-07-01	15.4431
1999-10-01	16.0032
2000-01-01	15.6326
2000-04-01	16.3974
2000-07-01	15.6901
2000-10-01	14.8065
2001-01-01	13.8530
2001-04-01	14.3612
2001-07-01	14.9187
2001-10-01	13.1822
2002-01-01	11.1810
2002-04-01	12.3810
2002-07-01	11.3084
2002-10-01	10.3588
2003-01-01	9.1977
2003-04-01	8.7868
2003-07-01	9.5495
2003-10-01	9.9244
2004-01-01	10.1524
2004-04-01	9.5433
2004-07-01	9.1991
2004-10-01	9.6783
2005-01-01	9.2436
2005-04-01	7.7699
2005-07-01	7.0738
2005-10-01	6.2448
2006-01-01	5.3748
2006-04-01	4.8438
2006-07-01	4.5620
2006-10-01	4.4338
2007-01-01	4.2915
2007-04-01	4.0729
2007-07-01	4.3251
2007-10-01	4.3649
2008-01-01	4.1688
2008-04-01	4.1194
2008-07-01	4.1131
2008-10-01	4.6612
2009-01-01	4.3017
2009-04-01	4.0021
2009-07-01	4.1350
2009-10-01	3.9778
2010-01-01	3.9271
2010-04-01	4.1332
2010-07-01	4.3801
2010-10-01	4.4850
2011-01-01	4.3149
2011-04-01	4.4190
2011-07-01	4.2503
2011-10-01	4.1907
2012-01-01	3.9647
2012-04-01	4.1072
2012-07-01	4.1988
2012-10-01	3.7631
2013-01-01	3.4594
2013-04-01	3.1791
2013-07-01	3.1816
2013-10-01	2.9535
2014-01-01	3.0238
2014-04-01	3.0701
2014-07-01	2.8436
2014-10-01	2.5779
2015-01-01	2.5893
2015-04-01	2.5398