Quarter	Billions of US Dollars
1993-07-01	2.5055
1993-10-01	2.4450
1994-01-01	2.4750
1994-04-01	2.5254
1994-07-01	2.5339
1994-10-01	2.0806
1995-01-01	2.2101
1995-04-01	2.4794
1995-07-01	2.9810
1995-10-01	3.2546
1996-01-01	3.4025
1996-04-01	3.3620
1996-07-01	3.3835
1996-10-01	3.4320
1997-01-01	3.2059
1997-04-01	2.7714
1997-07-01	2.5637
1997-10-01	2.3326
1998-01-01	2.3137
1998-04-01	3.1356
1998-07-01	3.5253
1998-10-01	3.3827
1999-01-01	3.9772
1999-04-01	3.9966
1999-07-01	4.8775
1999-10-01	4.7700
2000-01-01	4.8376
2000-04-01	5.2195
2000-07-01	5.1185
2000-10-01	7.2050
2001-01-01	7.1547
2001-04-01	7.3760
2001-07-01	7.4915
2001-10-01	7.4110
2002-01-01	7.4142
2002-04-01	7.5334
2002-07-01	7.6478
2002-10-01	7.8448
2003-01-01	8.0812
2003-04-01	8.3901
2003-07-01	9.7430
2003-10-01	10.0343
2004-01-01	9.9703
2004-04-01	10.8974
2004-07-01	8.6421
2004-10-01	10.0043
2005-01-01	9.4942
2005-04-01	9.7681
2005-07-01	8.9595
2005-10-01	8.7508
2006-01-01	10.0849
2006-04-01	10.1663
2006-07-01	10.8184
2006-10-01	10.7555
2007-01-01	10.6241
2007-04-01	10.7014
2007-07-01	11.0470
2007-10-01	10.7631
2008-01-01	10.0240
2008-04-01	11.0785
2008-07-01	10.5306
2008-10-01	10.1856
2009-01-01	10.9017
2009-04-01	12.2182
2009-07-01	13.8412
2009-10-01	14.5931
2010-01-01	14.4378
2010-04-01	14.2083
2010-07-01	14.8612
2010-10-01	14.6819
2011-01-01	15.0903
2011-04-01	15.7049
2011-07-01	14.3412
2011-10-01	13.9751
2012-01-01	13.6196
2012-04-01	12.8243
2012-07-01	13.6070
2012-10-01	14.1157
2013-01-01	13.4115
2013-04-01	12.3602
2013-07-01	11.3975
2013-10-01	14.3115
2014-01-01	14.0715
2014-04-01	13.8817
2014-07-01	14.1054
2014-10-01	13.6005
2015-01-01	12.8336
2015-04-01	14.2095