Quarter	Billions of US Dollars
1993-07-01	0.02200
1993-10-01	0.01200
1994-01-01	0.01650
1994-04-01	0.02000
1994-07-01	0.13950
1994-10-01	0.14150
1995-01-01	0.15250
1995-04-01	0.15950
1995-07-01	0.04000
1995-10-01	0.03400
1996-01-01	0.01000
1996-04-01	0.01500
1996-07-01	0.23571
1996-10-01	0.80347
1997-01-01	0.77038
1997-04-01	0.97133
1997-07-01	0.73356
1997-10-01	0.78258
1998-01-01	0.66693
1998-04-01	0.85864
1998-07-01	1.55228
1998-10-01	2.47595
1999-01-01	2.76499
1999-04-01	2.66369
1999-07-01	2.37003
1999-10-01	1.47876
2000-01-01	1.02802
2000-04-01	1.30413
2000-07-01	1.22000
2000-10-01	1.45000
2001-01-01	1.55000
2001-04-01	1.17400
2001-07-01	1.27573
2001-10-01	0.93381
2002-01-01	0.78261
2002-04-01	0.84558
2002-07-01	0.70000
2002-10-01	0.97000
2003-01-01	0.79000
2003-04-01	0.64000
2003-07-01	0.99000
2003-10-01	0.62000
2004-01-01	0.60000
2004-04-01	0.60000
2004-07-01	0.39000
2004-10-01	0.83500
2005-01-01	0.83500
2005-04-01	1.39750
2005-07-01	1.00750
2005-10-01	1.02250
2006-01-01	1.38250
2006-04-01	1.66000
2006-07-01	2.75500
2006-10-01	2.91500
2007-01-01	2.60000
2007-04-01	2.04500
2007-07-01	1.14725
2007-10-01	0.63225
2008-01-01	0.63225
2008-04-01	0.53225
2008-07-01	0.77000
2008-10-01	0.92981
2009-01-01	0.94826
2009-04-01	1.01201
2009-07-01	1.34133
2009-10-01	1.19527
2010-01-01	1.19682
2010-04-01	1.34826
2010-07-01	1.36694
2010-10-01	2.45369
2011-01-01	2.47871
2011-04-01	2.25352
2011-07-01	2.61895
2011-10-01	2.80343
2012-01-01	2.98341
2012-04-01	3.26006
2012-07-01	2.27663
2012-10-01	0.84165
2013-01-01	0.77820
2013-04-01	0.31155
2013-07-01	0.58155
2013-10-01	0.83230
2014-01-01	1.17455
2014-04-01	1.51351
2014-07-01	1.54351
2014-10-01	1.45776
2015-01-01	0.95396
2015-04-01	0.61500