Quarter	Billions of US Dollars
1999-07-01	0.03306
1999-10-01	0.03114
2000-01-01	0.02961
2000-04-01	0.02962
2000-07-01	0.02717
2000-10-01	0.02885
2001-01-01	0.02738
2001-04-01	0.02629
2001-07-01	0.02831
2001-10-01	0.02732
2002-01-01	0.02704
2002-04-01	0.16060
2002-07-01	0.15875
2002-10-01	0.16884
2003-01-01	0.17541
2003-04-01	0.18397
2003-07-01	0.18760
2003-10-01	0.20334
2004-01-01	0.19681
2004-04-01	0.31725
2004-07-01	0.28541
2004-10-01	0.31328
2005-01-01	0.29817
2005-04-01	0.27812
2005-07-01	0.27697
2005-10-01	0.27133
2006-01-01	0.27839
2006-04-01	0.29240
2006-10-01	0.19755
2007-01-01	0.19977
2007-04-01	0.20258
2007-07-01	0.63806
2007-10-01	0.66244
2008-01-01	0.71154
2008-04-01	0.70938
2008-07-01	0.64364
2008-10-01	0.62626
2009-01-01	0.59886
2009-04-01	0.63603
2009-07-01	0.65894
2009-10-01	1.00842
2010-01-01	0.94353
2010-04-01	0.85897
2010-07-01	0.95536
2010-10-01	0.93534
2011-01-01	1.20760
2011-04-01	1.22850
2011-07-01	1.14776
2011-10-01	1.09982
2012-01-01	1.13526
2012-04-01	1.44785
2012-07-01	1.48695
2012-10-01	2.74612
2013-01-01	2.68874
2013-04-01	2.72930
2013-07-01	2.79199
2013-10-01	2.83417
2014-01-01	2.83373
2014-04-01	2.26823
2014-07-01	2.15267
2014-10-01	2.14826
2015-01-01	1.99479
2015-04-01	2.07499