Quarter	Billions of US Dollars
1973-04-01	0.04300
1978-04-01	0.02500
1980-01-01	0.03000
1982-04-01	0.04000
1983-10-01	0.04500
1985-04-01	0.06000
1999-10-01	0.10000
2001-04-01	1.50000
2005-07-01	2.80362
2006-01-01	0.37800
2006-10-01	0.40000
2007-01-01	0.75000
2007-07-01	1.05514
2008-04-01	0.06670
2009-04-01	0.13770
2010-01-01	0.12224
2010-04-01	1.53359
2010-07-01	0.61199
2010-10-01	0.04708
2011-01-01	0.04377
2011-04-01	0.04026
2011-07-01	0.01192
2012-01-01	0.01490
2012-04-01	0.00046
2012-07-01	0.00245
2012-10-01	0.50407
2013-01-01	0.01011
2013-04-01	2.73956
2013-07-01	1.04089
2013-10-01	0.00444
2014-01-01	0.00449
2014-04-01	0.00764
2014-07-01	0.00595
2014-10-01	0.00821
2015-01-01	0.00113
2015-04-01	1.64194