Quarter	Billions of US Dollars
1993-07-01	4.35935
1993-10-01	3.62466
1994-01-01	4.97408
1994-04-01	4.33442
1994-07-01	5.18096
1994-10-01	3.65602
1995-01-01	0.50221
1995-04-01	1.59949
1995-07-01	2.10926
1995-10-01	1.33774
1996-01-01	1.84155
1996-04-01	2.63208
1996-07-01	1.06483
1996-10-01	0.97242
1997-01-01	0.70634
1997-04-01	0.88433
1997-07-01	0.78187
1997-10-01	0.59255
1998-01-01	0.51000
1998-04-01	0.44375
1998-07-01	0.51509
1998-10-01	0.34501
1999-01-01	0.75987
1999-04-01	0.57211
1999-07-01	0.60645
1999-10-01	0.56151
2000-01-01	0.49633
2000-04-01	0.38291
2000-07-01	0.43284
2000-10-01	1.87309
2001-01-01	2.05336
2001-04-01	1.21551
2001-07-01	0.43795
2001-10-01	0.28314
2002-01-01	0.35557
2002-04-01	0.29499
2002-07-01	0.24591
2002-10-01	0.11525
2003-01-01	0.21707
2003-04-01	0.12102
2003-07-01	0.21107
2003-10-01	0.25832
2004-01-01	0.21885
2004-04-01	0.34123
2004-07-01	0.27127
2004-10-01	0.53770
2005-01-01	0.34710
2005-04-01	0.44864
2005-07-01	0.31721
2005-10-01	0.28264
2006-01-01	0.64954
2006-04-01	0.58600
2006-07-01	0.75029
2006-10-01	0.45194
2007-01-01	0.65818
2007-04-01	0.70658
2007-07-01	0.78267
2007-10-01	0.58368
2008-01-01	0.51571
2008-04-01	0.56234
2008-07-01	0.49548
2008-10-01	0.67651
2009-01-01	0.52896
2009-04-01	0.56454
2009-07-01	0.64957
2009-10-01	0.61201
2010-01-01	0.70126
2010-04-01	0.63754
2010-07-01	0.80377
2010-10-01	0.59157
2011-01-01	0.73303
2011-04-01	0.72686
2011-07-01	0.98251
2011-10-01	0.92139
2012-01-01	0.96527
2012-04-01	0.97487
2012-07-01	0.87111
2012-10-01	0.96143
2013-01-01	1.04618
2013-04-01	0.91630
2013-07-01	0.86328
2013-10-01	0.96636
2014-01-01	1.70103
2014-04-01	1.38919
2014-07-01	1.37316
2014-10-01	1.07210
2015-01-01	0.93916
2015-04-01	1.73169