Quarter	Billions of US Dollars
1993-07-01	2.0045
1993-10-01	1.8801
1994-01-01	2.5538
1994-04-01	1.9290
1994-07-01	2.0785
1994-10-01	0.8618
1995-01-01	1.6868
1995-04-01	1.9520
1995-07-01	2.2235
1995-10-01	2.1177
1996-01-01	3.4118
1996-04-01	3.4831
1996-07-01	2.9698
1996-10-01	3.2153
1997-01-01	3.7957
1997-04-01	5.3538
1997-07-01	7.9865
1997-10-01	6.4598
1998-01-01	7.3829
1998-04-01	6.9233
1998-07-01	9.5609
1998-10-01	11.7677
1999-01-01	14.0067
1999-04-01	15.7856
1999-07-01	19.1885
1999-10-01	15.1873
2000-01-01	17.2268
2000-04-01	19.2214
2000-07-01	19.4105
2000-10-01	19.0342
2001-01-01	24.3721
2001-04-01	23.7172
2001-07-01	23.4216
2001-10-01	22.7704
2002-01-01	18.2150
2002-04-01	21.9880
2002-07-01	24.3695
2002-10-01	25.5184
2003-01-01	29.1635
2003-04-01	28.0019
2003-07-01	27.6693
2003-10-01	30.7507
2004-01-01	32.6124
2004-04-01	34.1467
2004-07-01	33.9943
2004-10-01	33.6810
2005-01-01	40.7566
2005-04-01	36.7166
2005-07-01	36.7222
2005-10-01	37.8312
2006-01-01	43.2941
2006-04-01	50.5228
2006-07-01	45.8099
2006-10-01	48.8687
2007-01-01	55.3893
2007-04-01	55.7708
2007-07-01	47.2542
2007-10-01	48.9492
2008-01-01	75.4415
2008-04-01	62.8646
2008-07-01	69.2593
2008-10-01	58.5438
2009-01-01	68.0223
2009-04-01	63.9125
2009-07-01	75.4467
2009-10-01	53.8436
2010-01-01	60.1112
2010-04-01	43.2404
2010-07-01	70.8638
2010-10-01	59.7075
2011-01-01	61.0035
2011-04-01	51.2903
2011-07-01	63.6725
2011-10-01	65.2448
2012-01-01	92.0494
2012-04-01	68.1611
2012-07-01	59.8084
2012-10-01	56.9158
2013-01-01	60.0997
2013-04-01	54.5596
2013-07-01	51.6721
2013-10-01	36.6794
2014-01-01	35.4402
2014-04-01	47.2544
2014-07-01	36.6277
2014-10-01	36.9687
2015-01-01	35.4401
2015-04-01	36.3432