Quarter	Billions of US Dollars
1993-07-01	0.1231
1993-10-01	0.1163
1994-01-01	0.0090
1994-04-01	0.0090
1994-07-01	0.0090
1994-10-01	0.0090
1995-01-01	0.0090
1995-04-01	0.0090
1995-07-01	0.0090
1995-10-01	0.0090
1996-01-01	0.0090
1996-04-01	0.0090
1996-07-01	3.2310
1996-10-01	3.2310
1997-01-01	3.7310
1997-04-01	3.7310
1997-07-01	4.4310
1997-10-01	4.4310
1998-01-01	4.4310
1998-04-01	4.7310
1998-07-01	4.7310
1998-10-01	4.1177
1999-01-01	4.6177
1999-04-01	4.6177
1999-07-01	4.6177
1999-10-01	4.6177
2000-01-01	4.6177
2000-04-01	4.5919
2000-07-01	4.9419
2000-10-01	4.9419
2001-01-01	5.6919
2001-04-01	5.5466
2001-07-01	5.5038
2001-10-01	5.1497
2002-01-01	4.8027
2002-04-01	4.8027
2002-07-01	4.8440
2002-10-01	4.8728
2003-01-01	5.0408
2003-04-01	5.0408
2003-07-01	4.9940
2003-10-01	4.9940
2004-01-01	5.1727
2004-04-01	5.1482
2004-07-01	5.1392
2004-10-01	5.7392
2005-01-01	5.7392
2005-04-01	5.7392
2005-07-01	5.9892
2005-10-01	6.9501
2006-01-01	8.3134
2006-04-01	7.7030
2006-07-01	7.6569
2006-10-01	7.6569
2007-01-01	7.6569
2007-04-01	8.1069
2007-07-01	8.1069
2007-10-01	8.1069
2008-01-01	8.1069
2008-04-01	7.7418
2008-07-01	7.7418
2008-10-01	7.7418
2009-01-01	8.0648
2009-04-01	8.0648
2009-07-01	8.0648
2009-10-01	9.0648
2010-01-01	9.0648
2010-04-01	9.0648
2010-07-01	9.0648
2010-10-01	9.0648
2011-01-01	9.1417
2011-04-01	9.1566
2011-07-01	9.1840
2011-10-01	9.1764
2012-01-01	8.9977
2012-04-01	9.0158
2012-07-01	8.7475
2012-10-01	8.6920
2013-01-01	8.6533
2013-04-01	9.3853
2013-07-01	9.3870
2013-10-01	9.8566
2014-01-01	9.8660
2014-04-01	9.8722
2014-07-01	11.0919
2014-10-01	11.0565
2015-01-01	10.8370
2015-04-01	10.8304