Quarter	Billions of US Dollars
1993-07-01	0.1728
1993-10-01	0.1724
1994-01-01	0.1148
1994-04-01	0.1156
1994-07-01	0.1172
1994-10-01	0.1184
1995-01-01	0.1187
1995-04-01	0.1205
1995-07-01	0.1202
1995-10-01	0.1202
1996-01-01	0.1200
1996-04-01	0.1202
1996-07-01	0.1205
1996-10-01	0.1205
1997-01-01	0.1205
1997-04-01	0.1206
1997-07-01	0.1207
1997-10-01	0.1208
1998-01-01	0.1208
1998-04-01	0.1208
1998-07-01	0.1208
1998-10-01	0.1208
1999-01-01	0.1208
1999-04-01	0.1208
1999-07-01	0.1208
1999-10-01	0.1208
2000-01-01	0.1208
2000-04-01	0.1208
2000-07-01	0.1208
2000-10-01	0.1208
2001-01-01	0.1208
2001-04-01	0.1208
2001-07-01	0.1208
2001-10-01	0.1208
2002-01-01	0.1208
2002-04-01	0.1208
2002-07-01	0.1208
2002-10-01	0.1208
2003-01-01	0.1208
2003-04-01	0.1208
2003-07-01	0.1208
2003-10-01	0.1208
2004-01-01	0.1208
2004-04-01	0.1208
2004-07-01	0.1208
2004-10-01	0.1208
2005-01-01	0.1208
2005-04-01	0.1208
2005-07-01	0.1236
2005-10-01	0.3878
2006-01-01	0.3904
2006-04-01	0.3915
2006-07-01	0.3958
2006-10-01	0.5122
2007-01-01	0.8739
2007-04-01	2.4975
2007-07-01	4.5232
2007-10-01	5.1906
2008-01-01	6.0441
2008-04-01	6.4768
2008-07-01	8.7305
2008-10-01	8.7105
2009-01-01	9.0754
2009-04-01	9.2275
2009-07-01	10.4561
2009-10-01	11.4833
2010-01-01	11.7989
2010-04-01	11.9358
2010-07-01	11.8366
2010-10-01	16.3956
2011-01-01	21.8789
2011-04-01	28.7904
2011-07-01	33.5527
2011-10-01	37.0300
2012-01-01	41.0235
2012-04-01	50.0090
2012-07-01	54.5255
2012-10-01	57.8416
2013-01-01	60.5881
2013-04-01	65.1422
2013-07-01	66.3492
2013-10-01	71.5383
2014-01-01	76.1359
2014-04-01	81.6847
2014-07-01	84.9651
2014-10-01	95.3835
2015-01-01	98.5097
2015-04-01	98.4034