Quarter	Billions of US Dollars
1993-07-01	0.0150
1993-10-01	0.0100
1994-10-01	0.0160
1995-01-01	0.0160
1995-04-01	0.0350
1995-07-01	0.0350
1995-10-01	0.0190
1996-01-01	0.0190
1999-01-01	0.0498
1999-04-01	0.1116
1999-07-01	0.2696
1999-10-01	0.4635
2000-01-01	0.3905
2000-04-01	0.6511
2000-07-01	0.6871
2000-10-01	0.5440
2001-01-01	0.6504
2001-04-01	0.5217
2001-07-01	0.5781
2001-10-01	1.0535
2002-01-01	0.8717
2002-04-01	1.2178
2002-07-01	1.2089
2002-10-01	0.9201
2003-01-01	1.2294
2003-04-01	2.1098
2003-07-01	2.1461
2003-10-01	2.6043
2004-01-01	2.2559
2004-04-01	2.3185
2004-07-01	3.3597
2004-10-01	4.0913
2005-01-01	3.7904
2005-04-01	3.8256
2005-07-01	4.2921
2005-10-01	5.4445
2006-01-01	7.2548
2006-04-01	7.9929
2006-07-01	9.1993
2006-10-01	10.7291
2007-01-01	9.6091
2007-04-01	9.5840
2007-07-01	8.2242
2007-10-01	7.9862
2008-01-01	9.9438
2008-04-01	11.3220
2008-07-01	10.0237
2008-10-01	10.7572
2009-01-01	10.4084
2009-04-01	10.7734
2009-07-01	9.7211
2009-10-01	9.2971
2010-01-01	6.7040
2010-04-01	5.3537
2010-07-01	7.5955
2010-10-01	7.2032
2011-01-01	8.5606
2011-04-01	7.9217
2011-07-01	7.6908
2011-10-01	5.9702
2012-01-01	4.0083
2012-04-01	2.7538
2012-07-01	1.1213
2012-10-01	0.8818
2013-01-01	0.7650
2013-04-01	1.0146
2013-07-01	0.7838
2013-10-01	0.7368
2014-01-01	1.3726
2014-04-01	0.9552
2014-07-01	1.9946
2014-10-01	1.8601
2015-01-01	1.3153
2015-04-01	3.1920