Quarter	Billions of US Dollars
1993-07-01	0.2015
1993-10-01	0.1450
1994-01-01	0.2367
1997-10-01	0.1798
2004-01-01	0.6502
2004-10-01	0.0070
2005-04-01	2.5179
2006-04-01	4.4396
2007-04-01	8.5324
2007-07-01	3.9854
2007-10-01	1.4928
2008-04-01	11.0298
2008-07-01	7.1761
2008-10-01	7.2526
2009-01-01	5.3711
2009-04-01	10.2614
2009-07-01	12.1197
2010-04-01	0.8258
2010-07-01	1.2911
2010-10-01	3.3960
2011-10-01	13.8015
2012-01-01	18.5890
2012-04-01	9.6488
2012-07-01	4.8474
2012-10-01	3.0408
2013-04-01	9.4551
2013-10-01	10.4528
2014-01-01	2.5134
2014-04-01	6.6735
2014-07-01	4.7688
2014-10-01	14.5439
2015-01-01	23.2807
2015-04-01	34.5738