Quarter	Billions of US Dollars
1993-07-01	0.0937
1993-10-01	0.0478
1994-01-01	0.0300
1994-07-01	0.0200
1994-10-01	0.0750
1995-01-01	0.3930
1995-04-01	0.1265
1995-07-01	0.1478
1995-10-01	0.1259
1996-01-01	0.2774
1996-04-01	0.1666
1996-07-01	0.0172
1996-10-01	0.0700
1997-01-01	0.0150
1997-04-01	0.0963
1997-07-01	0.0955
1997-10-01	0.1882
1998-01-01	0.3993
1998-04-01	0.2383
1998-07-01	0.7657
1998-10-01	0.2251
1999-01-01	2.1109
1999-04-01	2.3868
1999-07-01	1.9365
1999-10-01	2.3354
2000-01-01	3.7171
2000-04-01	5.7811
2000-07-01	3.5283
2000-10-01	3.1025
2001-01-01	4.7636
2001-04-01	3.2618
2001-07-01	5.4890
2001-10-01	6.9129
2002-01-01	8.1216
2002-04-01	6.1692
2002-07-01	7.3343
2002-10-01	8.8770
2003-01-01	10.7616
2003-04-01	10.9430
2003-07-01	8.2044
2003-10-01	8.4852
2004-01-01	13.4835
2004-04-01	14.4519
2004-07-01	17.6526
2004-10-01	19.5960
2005-01-01	27.8148
2005-04-01	24.3591
2005-07-01	27.8661
2005-10-01	26.0577
2006-01-01	30.7108
2006-04-01	31.0572
2006-07-01	37.2183
2006-10-01	38.2859
2007-01-01	48.9286
2007-04-01	42.3751
2007-07-01	51.8399
2007-10-01	29.9074
2008-01-01	43.5284
2008-04-01	41.1668
2008-07-01	41.2041
2008-10-01	40.5325
2009-01-01	34.2923
2009-04-01	23.9266
2009-07-01	31.6691
2009-10-01	22.9131
2010-01-01	23.8420
2010-04-01	26.0719
2010-07-01	29.9361
2010-10-01	22.7489
2011-01-01	17.0207
2011-04-01	11.0511
2011-07-01	10.2426
2011-10-01	7.2935
2012-01-01	45.7285
2012-04-01	22.0285
2012-07-01	7.5337
2012-10-01	6.8337
2013-01-01	42.7296
2013-04-01	3.5300
2013-07-01	3.5036
2013-10-01	2.6041
2014-01-01	3.0257
2014-04-01	3.3384
2014-07-01	4.9445
2014-10-01	5.5447
2015-01-01	5.3359
2015-04-01	4.2319