Quarter	Billions of US Dollars
1993-07-01	6.0428
1993-10-01	-2.3549
1994-01-01	1.8172
1994-04-01	-4.6297
1994-07-01	-4.0042
1994-10-01	-6.6214
1995-01-01	-5.0549
1995-04-01	-1.3894
1995-07-01	-9.0904
1995-10-01	3.4170
1996-01-01	1.3411
1996-04-01	0.3373
1996-07-01	-2.7630
1996-10-01	1.9559
1997-01-01	1.5858
1997-04-01	3.8749
1997-07-01	3.6497
1997-10-01	-6.3813
1998-01-01	1.8429
1998-04-01	14.3075
1998-07-01	5.0670
1998-10-01	15.0868
1999-01-01	20.4701
1999-04-01	36.2073
1999-07-01	31.0227
1999-10-01	24.3537
2000-01-01	8.8585
2000-04-01	44.5481
2000-07-01	43.8305
2000-10-01	41.4918
2001-01-01	54.0096
2001-04-01	52.5642
2001-07-01	11.1433
2001-10-01	39.7311
2002-01-01	1.0643
2002-04-01	27.0471
2002-07-01	-4.8078
2002-10-01	-2.1391
2003-01-01	3.9803
2003-04-01	25.1621
2003-07-01	8.0132
2003-10-01	24.8139
2004-01-01	-4.1553
2004-04-01	8.0831
2004-07-01	-0.8034
2004-10-01	21.0384
2005-01-01	3.8674
2005-04-01	5.8917
2005-07-01	-25.3643
2005-10-01	24.4063
2006-01-01	17.8639
2006-04-01	21.0336
2006-07-01	19.6457
2006-10-01	24.2066
2007-01-01	17.2314
2007-04-01	50.4003
2007-07-01	-2.0783
2007-10-01	25.5406
2008-01-01	4.7158
2008-04-01	52.4963
2008-07-01	15.3421
2008-10-01	10.1704
2009-01-01	48.0068
2009-04-01	82.0141
2009-07-01	26.0960
2009-10-01	27.5654
2010-01-01	36.4310
2010-04-01	9.9510
2010-07-01	28.2862
2010-10-01	34.0303
2011-01-01	29.4537
2011-04-01	42.8533
2011-07-01	16.6098
2011-10-01	22.0246
2012-01-01	54.4295
2012-04-01	39.6277
2012-07-01	61.9566
2012-10-01	75.7709
2013-01-01	55.4272
2013-04-01	49.2090
2013-07-01	59.8781
2013-10-01	98.8720
2014-01-01	25.0799
2014-04-01	65.9711
2014-07-01	63.6132
2014-10-01	54.3072
2015-01-01	66.9639
2015-04-01	56.2035