Quarter	Billions of US Dollars
1996-04-01	0.00710
1996-07-01	0.01395
1996-10-01	0.00712
1997-01-01	0.01556
1998-01-01	0.00268
1998-04-01	0.00177
1999-01-01	0.00294
1999-10-01	0.01404
2000-01-01	0.09796
2000-04-01	0.09700
2000-07-01	0.16459
2000-10-01	0.13124
2001-01-01	0.16487
2001-04-01	0.12364
2001-07-01	0.04124
2001-10-01	0.05410
2002-01-01	0.24419
2002-04-01	0.08560
2002-07-01	0.23301
2002-10-01	0.06145
2003-01-01	0.14701
2003-04-01	0.31628
2003-07-01	0.32028
2003-10-01	0.20202
2004-01-01	0.35084
2004-04-01	0.31936
2004-07-01	0.29324
2004-10-01	0.45078
2005-01-01	0.44345
2005-04-01	0.47042
2005-07-01	0.67321
2005-10-01	0.79168
2006-01-01	0.69687
2006-04-01	0.80808
2006-07-01	0.85422
2006-10-01	1.02739
2007-01-01	2.28764
2007-04-01	2.40895
2007-07-01	1.84669
2007-10-01	1.44539
2008-01-01	1.19415
2008-04-01	1.29779
2008-07-01	1.25948
2008-10-01	0.26762
2009-01-01	1.06195
2009-04-01	0.64488
2009-07-01	0.80363
2009-10-01	0.75636
2010-01-01	1.01607
2010-04-01	1.10143
2010-07-01	1.32824
2010-10-01	1.16569
2011-01-01	1.33731
2011-04-01	1.58178
2011-07-01	1.10288
2011-10-01	1.00186
2012-01-01	1.14344
2012-04-01	1.09029
2012-07-01	0.84083
2012-10-01	0.98469
2013-01-01	1.52172
2013-04-01	0.86722
2013-07-01	1.08449
2013-10-01	0.94964
2014-01-01	0.84986
2014-04-01	0.71672
2014-07-01	0.60569
2014-10-01	0.48643
2015-01-01	0.74553
2015-04-01	0.82907