Quarter	Billions of US Dollars
2004-04-01	0.00167
2004-07-01	0.00182
2004-10-01	0.00196
2005-01-01	0.22615
2005-04-01	0.25168
2005-07-01	0.27652
2005-10-01	0.27410
2006-01-01	0.16225
2006-04-01	0.18384
2006-07-01	0.16555
2006-10-01	0.22453
2007-01-01	0.73795
2007-04-01	1.80039
2007-07-01	2.38919
2007-10-01	2.83738
2008-01-01	2.56424
2008-04-01	1.80700
2008-07-01	0.95168
2008-10-01	0.44861
2009-01-01	0.25200
2009-04-01	0.52686
2009-07-01	0.44819
2009-10-01	0.67973
2010-01-01	1.04347
2010-04-01	0.98577
2010-07-01	0.93964
2010-10-01	0.34853
2011-01-01	0.23569
2011-04-01	0.46674
2011-07-01	0.26133
2011-10-01	0.24672
2012-01-01	0.21617
2012-04-01	1.07674
2012-07-01	0.31056
2012-10-01	0.41876
2013-01-01	0.70129
2013-04-01	0.71674
2013-07-01	0.63466
2013-10-01	0.44743
2014-01-01	0.51483
2014-04-01	0.66024
2014-07-01	0.77627
2014-10-01	0.67429
2015-01-01	0.33349
2015-04-01	0.27807