Quarter	Billions of US Dollars
1993-07-01	0.4329
1993-10-01	0.3482
1994-01-01	0.4581
1994-04-01	0.5875
1994-07-01	0.4180
1994-10-01	0.4231
1995-01-01	0.5742
1995-04-01	0.6462
1995-07-01	1.0813
1995-10-01	1.0120
1996-01-01	1.1164
1996-04-01	1.4064
1996-07-01	0.3542
1996-10-01	0.4221
1997-01-01	0.3817
1997-04-01	0.4395
1997-07-01	0.7185
1997-10-01	0.5176
1998-01-01	0.5450
1998-04-01	0.5845
1998-07-01	0.2934
1998-10-01	0.3889
1999-01-01	0.7109
1999-04-01	1.0215
1999-07-01	2.1334
1999-10-01	2.0020
2000-01-01	1.8311
2000-04-01	3.1826
2000-07-01	6.4637
2000-10-01	3.2643
2001-01-01	7.1208
2001-04-01	5.9787
2001-07-01	5.5913
2001-10-01	5.0451
2002-01-01	4.7655
2002-04-01	5.5254
2002-07-01	4.5984
2002-10-01	4.2827
2003-01-01	5.0654
2003-04-01	4.9194
2003-07-01	4.5376
2003-10-01	4.1577
2004-01-01	3.2909
2004-04-01	2.7350
2004-07-01	4.4289
2004-10-01	4.5736
2005-01-01	4.6611
2005-04-01	3.8153
2005-07-01	3.9727
2005-10-01	1.8988
2006-01-01	2.9039
2006-04-01	2.5250
2006-07-01	5.2878
2006-10-01	7.4531
2007-01-01	8.7049
2007-04-01	9.3698
2007-07-01	11.0118
2007-10-01	10.4978
2008-01-01	8.8431
2008-04-01	7.2316
2008-07-01	4.9917
2008-10-01	5.2545
2009-01-01	4.6933
2009-04-01	11.4393
2009-07-01	9.5565
2009-10-01	12.0818
2010-01-01	10.4672
2010-04-01	7.1706
2010-07-01	7.6357
2010-10-01	4.2287
2011-01-01	7.8728
2011-04-01	6.9484
2011-07-01	6.6595
2011-10-01	6.4836
2012-01-01	4.2137
2012-04-01	1.2493
2012-07-01	1.0912
2012-10-01	1.0457
2013-01-01	0.3076
2013-04-01	4.1203
2013-07-01	4.8598
2013-10-01	5.0297
2014-01-01	5.0994
2014-04-01	2.2102
2014-07-01	2.9744
2014-10-01	3.1092
2015-01-01	2.9626
2015-04-01	3.5702