Quarter	Billions of US Dollars
1993-07-01	0.1549
1993-10-01	0.1540
1994-01-01	0.2260
1994-04-01	0.1835
1994-07-01	0.2500
1994-10-01	0.2390
1995-01-01	0.2418
1995-04-01	0.2420
1995-07-01	0.2376
1995-10-01	0.3400
1996-01-01	0.2755
1996-04-01	0.1655
1996-07-01	0.3154
1996-10-01	0.2981
1997-01-01	0.2903
1997-04-01	0.2555
1997-07-01	0.2713
1997-10-01	0.1375
1998-01-01	0.1885
1998-04-01	0.2300
1998-07-01	0.2520
1998-10-01	0.0705
1999-01-01	0.0685
1999-04-01	0.2692
1999-07-01	0.2847
1999-10-01	0.1527
2000-01-01	0.2236
2000-04-01	0.1749
2000-07-01	0.1707
2000-10-01	0.4554
2001-01-01	0.1675
2001-04-01	0.0822
2001-10-01	0.0140
2002-01-01	0.0175
2002-04-01	0.0234
2002-07-01	0.0334
2002-10-01	0.1500
2003-01-01	0.0783
2003-04-01	0.0400
2003-07-01	0.0297
2003-10-01	0.1409
2004-01-01	0.0863
2004-04-01	0.0628
2004-07-01	0.0838
2004-10-01	0.0676
2005-01-01	0.1002
2005-04-01	0.0679
2005-07-01	1.0397
2005-10-01	1.4163
2006-01-01	2.3148
2006-04-01	1.3318
2006-07-01	2.9666
2006-10-01	4.6077
2007-01-01	5.0722
2007-04-01	4.2494
2007-07-01	3.9350
2007-10-01	3.2255
2008-01-01	4.6374
2008-04-01	3.5357
2008-07-01	3.8751
2008-10-01	0.6494
2009-01-01	0.8385
2009-04-01	1.0012
2009-07-01	1.2817
2009-10-01	0.9158
2010-01-01	0.5576
2010-04-01	0.3780
2010-07-01	0.2499
2010-10-01	0.2437
2011-01-01	0.4514
2011-04-01	0.7021
2011-07-01	0.9867
2011-10-01	0.5825
2012-01-01	2.1135
2012-04-01	2.6065
2012-07-01	2.4282
2012-10-01	4.1067
2013-01-01	5.9396
2013-04-01	6.0787
2013-07-01	6.1727
2013-10-01	5.9861
2014-01-01	5.9968
2014-04-01	7.3356
2014-07-01	7.2209
2014-10-01	6.4080
2015-01-01	7.0763
2015-04-01	10.1553