Quarter	Billions of US Dollars
1999-07-01	0.01066
1999-10-01	0.01005
2000-01-01	0.00955
2000-04-01	0.00956
2000-07-01	0.00877
2000-10-01	0.00931
2001-01-01	0.00883
2001-04-01	0.00848
2001-07-01	0.00913
2001-10-01	0.00881
2002-01-01	0.00872
2002-04-01	0.00997
2002-07-01	0.20706
2002-10-01	0.22023
2003-01-01	0.22880
2003-04-01	0.23997
2003-07-01	0.24469
2003-10-01	0.26523
2004-01-01	0.25670
2004-04-01	0.25525
2004-07-01	0.24818
2004-10-01	0.27242
2005-01-01	0.25928
2005-04-01	0.24184
2005-07-01	0.24084
2005-10-01	0.41881
2006-01-01	0.36312
2006-04-01	0.38139
2006-07-01	0.37980
2006-10-01	0.39510
2007-01-01	0.39954
2007-04-01	0.40515
2007-07-01	0.42537
2007-10-01	0.44163
2008-01-01	0.47436
2008-04-01	0.47292
2008-07-01	0.42909
2008-10-01	0.41751
2009-01-01	0.39924
2009-04-01	0.42402
2009-07-01	0.43929
2009-10-01	0.43218
2010-01-01	0.40437
2010-04-01	0.36813
2010-07-01	0.40944
2010-10-01	0.40086
2011-01-01	0.42621
2011-04-01	0.43359
2011-07-01	0.70891
2011-10-01	0.67930
2012-01-01	0.70119
2012-04-01	1.03868
2012-07-01	1.06673
2012-10-01	1.08851
2013-01-01	1.05641
2013-04-01	1.22835
2013-07-01	1.26391
2013-10-01	1.28578
2014-01-01	1.42564
2014-04-01	1.40971
2014-07-01	1.30346
2014-10-01	1.24417
2015-01-01	1.10646
2015-04-01	1.14953