Quarter	Billions of US Dollars
1991-04-01	-0.0723
1992-01-01	0.1100
1992-04-01	0.0500
1993-04-01	-0.0063
1993-07-01	-0.0238
1993-10-01	0.2410
1994-01-01	0.2110
1994-04-01	-0.0117
1994-07-01	0.0088
1994-10-01	0.0370
1995-01-01	-0.0277
1995-04-01	-0.0123
1995-07-01	0.1390
1995-10-01	0.1423
1996-01-01	0.1066
1996-04-01	0.4611
1996-07-01	0.3760
1996-10-01	0.0159
1997-01-01	-0.1061
1997-04-01	0.5760
1997-07-01	0.2802
1997-10-01	0.0290
1998-01-01	0.1808
1998-04-01	0.3823
1998-07-01	1.2239
1998-10-01	-0.3492
1999-01-01	-0.4920
1999-04-01	-0.0061
1999-07-01	0.0741
1999-10-01	0.4198
2000-01-01	0.5090
2000-04-01	0.0805
2000-07-01	-0.5381
2000-10-01	-0.1401
2001-01-01	-0.3506
2001-04-01	1.0005
2001-07-01	1.2030
2001-10-01	1.5879
2002-01-01	1.3706
2002-04-01	0.6197
2002-07-01	2.3336
2002-10-01	-0.2695
2003-01-01	0.0667
2003-04-01	1.3118
2003-07-01	3.2702
2003-10-01	1.2427
2004-01-01	0.5804
2004-04-01	0.1059
2004-07-01	1.3289
2004-10-01	0.1107
2005-01-01	0.2273
2005-04-01	-0.6438
2005-07-01	1.2803
2005-10-01	0.1203
2006-01-01	0.9986
2006-04-01	0.3697
2006-07-01	-0.7317
2006-10-01	4.9037
2007-01-01	0.6194
2007-04-01	1.9909
2007-07-01	-1.8098
2007-10-01	2.5513
2008-01-01	2.9220
2008-04-01	3.9368
2008-07-01	0.2887
2008-10-01	-0.9347
2009-01-01	-0.7272
2009-04-01	-0.7521
2009-07-01	4.1526
2009-10-01	8.0819
2010-01-01	1.1964
2010-04-01	2.6626
2010-07-01	5.5931
2010-10-01	1.3114
2011-01-01	8.2302
2011-04-01	2.8890
2011-07-01	-0.1042
2011-10-01	3.3851
2012-01-01	13.5838
2012-04-01	3.0308
2012-07-01	-0.1689
2012-10-01	4.8281
2013-01-01	1.8664
2013-04-01	14.7216
2013-07-01	0.6617
2013-10-01	-0.1391
2014-01-01	14.6650
2014-04-01	8.5421
2014-07-01	-0.0132
2014-10-01	-2.6306
2015-01-01	-2.1960
2015-04-01	0.3295