Quarter	Billions of US Dollars
1993-07-01	1.6963
1993-10-01	1.1301
1994-01-01	1.6142
1994-04-01	0.8806
1994-07-01	1.4494
1994-10-01	1.0764
1995-01-01	1.2912
1995-04-01	1.1866
1995-07-01	1.2221
1995-10-01	1.1516
1996-01-01	1.2378
1996-04-01	1.2855
1996-07-01	0.8336
1996-10-01	1.2837
1997-01-01	1.3518
1997-04-01	1.0778
1997-07-01	0.9882
1997-10-01	2.0834
1998-01-01	0.8064
1998-04-01	0.6927
1998-07-01	0.6709
1998-10-01	0.9997
1999-01-01	0.7362
1999-04-01	0.6085
1999-07-01	0.9842
1999-10-01	0.5508
2000-01-01	0.5766
2000-04-01	0.4184
2000-07-01	0.4287
2000-10-01	0.3167
2001-01-01	0.4019
2001-04-01	0.4274
2001-07-01	0.5116
2001-10-01	0.2516
2002-01-01	0.4623
2002-04-01	0.2291
2002-07-01	0.3393
2002-10-01	0.3791
2003-01-01	0.5611
2003-04-01	0.3709
2003-07-01	1.1402
2003-10-01	0.2746
2004-01-01	1.2937
2004-04-01	0.8892
2004-07-01	0.9706
2004-10-01	0.9422
2005-01-01	1.5923
2005-04-01	1.3629
2005-07-01	1.6767
2005-10-01	1.4423
2006-01-01	3.7948
2006-04-01	2.6621
2006-07-01	2.4394
2006-10-01	2.3643
2007-01-01	2.8502
2007-04-01	2.2975
2007-07-01	2.2850
2007-10-01	2.6175
2008-01-01	3.1904
2008-04-01	3.8111
2008-07-01	4.1169
2008-10-01	6.3799
2009-01-01	8.0775
2009-04-01	9.8424
2009-07-01	10.4616
2009-10-01	10.0016
2010-01-01	7.9813
2010-04-01	8.5515
2010-07-01	6.7472
2010-10-01	9.4580
2011-01-01	8.2633
2011-04-01	9.7447
2011-07-01	7.1078
2011-10-01	6.0515
2012-01-01	7.2374
2012-04-01	5.0120
2012-07-01	4.9975
2012-10-01	2.6660
2013-01-01	6.0789
2013-04-01	6.4138
2013-07-01	5.4953
2013-10-01	5.5639
2014-01-01	7.5039
2014-04-01	5.8422
2014-07-01	3.7125
2014-10-01	6.1017
2015-01-01	4.9758
2015-04-01	5.5040