Quarter	Billions of US Dollars
2000-04-01	0.10211
2000-07-01	0.09728
2000-10-01	0.23923
2001-01-01	0.36970
2001-04-01	0.34980
2001-07-01	0.31484
2001-10-01	0.33404
2002-01-01	0.32990
2002-04-01	0.31426
2002-07-01	0.29324
2002-10-01	0.30775
2003-01-01	0.30141
2003-04-01	0.08104
2003-07-01	0.08495
2003-10-01	0.09427
2004-01-01	0.09067
2004-04-01	0.08876
2004-07-01	0.09310
2004-10-01	0.10093
2005-01-01	0.09635
2005-04-01	0.00260
2005-07-01	0.07084
2005-10-01	0.07352
2006-01-01	0.07936
2006-04-01	0.19472
2006-07-01	0.20816
2006-10-01	0.24700
2007-01-01	0.24474
2007-04-01	0.34592
2007-07-01	0.41907
2007-10-01	0.46953
2008-01-01	0.58106
2008-04-01	0.46098
2008-07-01	0.54291
2008-10-01	0.47677
2009-01-01	0.51566
2009-04-01	0.53238
2009-07-01	0.51622
2009-10-01	0.56315
2010-01-01	0.46351
2010-04-01	0.60568
2010-07-01	1.70474
2010-10-01	1.79813
2011-01-01	1.52893
2011-04-01	2.05053
2011-07-01	2.20807
2011-10-01	2.19664
2012-01-01	2.35063
2012-04-01	2.27621
2012-07-01	2.49131
2012-10-01	2.48703
2013-01-01	2.47189
2013-04-01	2.49333
2013-07-01	2.49056
2013-10-01	2.34129
2014-01-01	2.31506
2014-04-01	2.49887
2014-07-01	2.26914
2014-10-01	2.21835
2015-01-01	1.91878
2015-04-01	1.98375