Quarter	Billions of US Dollars
1993-07-01	0.1938
1993-10-01	0.0586
1994-01-01	0.1928
1994-04-01	0.2519
1994-07-01	0.2673
1994-10-01	0.0101
1995-01-01	0.3970
1995-04-01	0.2717
1995-07-01	0.3718
1995-10-01	0.1286
1996-01-01	0.8090
1996-04-01	0.6099
1996-07-01	0.6862
1996-10-01	0.2496
1997-01-01	1.6755
1997-04-01	1.1777
1997-07-01	0.9860
1997-10-01	0.2462
1998-01-01	1.4258
1998-04-01	1.3131
1998-07-01	1.6892
1998-10-01	0.7908
1999-01-01	2.0585
1999-04-01	1.4081
1999-07-01	1.8066
1999-10-01	0.6330
2000-01-01	2.0311
2000-04-01	1.6924
2000-07-01	4.2872
2000-10-01	1.4043
2001-01-01	1.9974
2001-04-01	1.6221
2001-07-01	1.8392
2001-10-01	1.4172
2002-01-01	1.5845
2002-04-01	1.2716
2002-07-01	1.6006
2002-10-01	1.4458
2003-01-01	1.4370
2003-04-01	1.7936
2003-07-01	0.8159
2003-10-01	1.3445
2004-01-01	1.2515
2004-04-01	0.4752
2004-07-01	0.6652
2004-10-01	3.4171
2005-01-01	1.6024
2005-04-01	2.6316
2005-07-01	2.3614
2005-10-01	1.6451
2006-01-01	3.1418
2006-04-01	2.9604
2006-07-01	2.6655
2006-10-01	1.4475
2007-01-01	3.4682
2007-04-01	3.0112
2007-07-01	4.5319
2007-10-01	8.5557
2008-01-01	12.1931
2008-04-01	6.6603
2008-07-01	5.9144
2008-10-01	8.3355
2009-01-01	9.1314
2009-04-01	5.7193
2009-07-01	5.8166
2009-10-01	4.1472
2010-01-01	5.1824
2010-04-01	3.6189
2010-07-01	3.1656
2010-10-01	1.6097
2011-01-01	6.5549
2011-04-01	6.0635
2011-07-01	5.3826
2011-10-01	8.6210
2012-01-01	14.0569
2012-04-01	14.2699
2012-07-01	11.5667
2012-10-01	3.8247
2013-01-01	2.6720
2013-04-01	3.3509
2013-07-01	3.2185
2013-10-01	6.0747
2014-01-01	5.0717
2014-04-01	4.1529
2014-07-01	3.7947
2014-10-01	2.8942
2015-01-01	1.9385
2015-04-01	2.5270