Quarter	Billions of US Dollars
1993-07-01	0.8101
1993-10-01	0.0151
1994-01-01	-0.2035
1994-04-01	0.4572
1994-07-01	-0.1059
1994-10-01	0.6414
1995-01-01	-0.1788
1995-04-01	0.0189
1995-07-01	-0.6210
1995-10-01	0.9419
1996-01-01	-0.0061
1996-04-01	-0.6658
1996-07-01	-1.0230
1996-10-01	0.6394
1997-01-01	0.3795
1997-04-01	1.4892
1997-07-01	-0.8077
1997-10-01	0.2627
1998-01-01	-0.6275
1998-04-01	1.4118
1998-07-01	0.9173
1998-10-01	-0.9580
1999-01-01	1.5106
1999-04-01	1.2300
1999-07-01	0.0786
1999-10-01	3.6462
2000-01-01	1.2297
2000-04-01	5.0393
2000-07-01	1.8478
2000-10-01	10.9869
2001-01-01	1.1915
2001-04-01	3.8406
2001-07-01	-1.0086
2001-10-01	0.1385
2002-01-01	-0.7728
2002-04-01	6.1920
2002-07-01	1.9370
2002-10-01	-0.3821
2003-01-01	7.1417
2003-04-01	5.1198
2003-07-01	-4.5516
2003-10-01	-1.3452
2004-01-01	3.4452
2004-04-01	2.0232
2004-07-01	2.1461
2004-10-01	1.1612
2005-01-01	4.2550
2005-04-01	0.1843
2005-07-01	-11.2533
2005-10-01	9.9353
2006-01-01	1.9730
2006-04-01	13.7748
2006-07-01	0.8672
2006-10-01	-2.9533
2007-01-01	1.7615
2007-04-01	1.5991
2007-07-01	-0.0428
2007-10-01	-5.4359
2008-01-01	-1.0766
2008-04-01	9.1723
2008-07-01	4.9951
2008-10-01	-2.8015
2009-01-01	-4.9245
2009-04-01	7.9553
2009-07-01	2.7095
2009-10-01	-0.9882
2010-01-01	3.8091
2010-04-01	3.1093
2010-07-01	2.2079
2010-10-01	-3.0987
2011-01-01	-0.6270
2011-04-01	9.2699
2011-07-01	1.1481
2011-10-01	-6.4895
2012-01-01	3.4096
2012-04-01	11.0402
2012-07-01	0.8780
2012-10-01	6.8495
2013-01-01	7.8694
2013-04-01	10.8519
2013-07-01	0.7854
2013-10-01	9.4934
2014-01-01	8.3527
2014-04-01	0.0016
2014-07-01	6.0015
2014-10-01	9.3457
2015-01-01	1.7794
2015-04-01	9.8852