Quarter	Billions of US Dollars
1969-01-01	0.0271
1969-04-01	0.0150
1969-10-01	0.0500
1970-07-01	0.0750
1971-01-01	0.0750
1971-04-01	0.0223
1971-07-01	0.0551
1971-10-01	0.0862
1972-01-01	0.1547
1972-04-01	0.5464
1972-07-01	0.2427
1972-10-01	0.4987
1973-01-01	0.1054
1973-04-01	0.3202
1973-07-01	0.2167
1973-10-01	0.5746
1974-01-01	0.4564
1974-04-01	0.5900
1974-07-01	0.4010
1974-10-01	0.5426
1975-01-01	0.7297
1975-04-01	0.8955
1975-07-01	0.9293
1975-10-01	2.1039
1976-01-01	3.1757
1976-04-01	1.4669
1976-07-01	1.6756
1976-10-01	2.1389
1977-01-01	1.0389
1977-04-01	1.2491
1977-07-01	1.5575
1977-10-01	0.8836
1978-01-01	1.4276
1978-04-01	1.7277
1978-07-01	0.7387
1978-10-01	0.9101
1979-01-01	1.7899
1979-04-01	0.7238
1979-07-01	0.9577
1979-10-01	0.4267
1980-01-01	0.6383
1980-04-01	1.1834
1980-07-01	-0.0576
1980-10-01	0.7692
1981-01-01	0.7515
1981-04-01	2.3981
1981-07-01	2.0046
1981-10-01	3.5886
1982-01-01	3.3051
1982-04-01	2.2216
1982-07-01	2.5645
1982-10-01	1.4396
1983-01-01	1.1622
1983-04-01	2.0444
1983-07-01	0.2636
1983-10-01	0.9760
1984-01-01	1.4588
1984-04-01	1.2142
1984-07-01	1.0991
1984-10-01	1.2059
1985-01-01	0.9767
1985-04-01	0.9528
1985-07-01	1.4159
1985-10-01	0.8869
1986-01-01	3.3116
1986-04-01	3.5001
1986-07-01	3.2203
1986-10-01	2.2830
1987-01-01	0.2353
1987-04-01	0.6821
1987-07-01	-0.0569
1987-10-01	0.8815
1988-01-01	-0.5513
1988-04-01	1.8311
1988-07-01	2.1707
1988-10-01	1.7687
1989-01-01	2.8925
1989-04-01	0.2179
1989-07-01	0.2242
1989-10-01	0.5676
1990-01-01	1.9038
1990-04-01	1.4593
1990-07-01	-0.6276
1990-10-01	1.3633
1991-01-01	4.2028
1991-04-01	4.3859
1991-07-01	0.7766
1991-10-01	4.1243
1992-01-01	1.3136
1992-04-01	3.2141
1992-07-01	1.4928
1992-10-01	2.4603
1993-01-01	10.2685
1993-04-01	2.7648
1993-07-01	4.6242
1993-10-01	0.3335
1994-01-01	7.9677
1994-04-01	2.8149
1994-07-01	6.3496
1994-10-01	-0.1829
1995-01-01	1.6601
1995-04-01	1.2396
1995-07-01	5.5264
1995-10-01	-0.9999
1996-01-01	0.4767
1996-04-01	-0.4945
1996-07-01	2.2325
1996-10-01	3.6162
1997-01-01	3.3280
1997-04-01	3.2252
1997-07-01	2.9495
1997-10-01	-2.3108
1998-01-01	5.0048
1998-04-01	7.1039
1998-07-01	2.5340
1998-10-01	4.4878
1999-01-01	2.2039
1999-04-01	6.8763
1999-07-01	-0.6496
1999-10-01	0.8461
2000-01-01	-1.0419
2000-04-01	-4.0015
2000-07-01	0.5371
2000-10-01	-1.1168
2001-01-01	3.4266
2001-04-01	5.1133
2001-07-01	5.7136
2001-10-01	7.3772
2002-01-01	7.6422
2002-04-01	-0.6864
2002-07-01	1.4412
2002-10-01	1.9036
2003-01-01	-0.1777
2003-04-01	8.4644
2003-07-01	5.0272
2003-10-01	5.3408
2004-01-01	0.8984
2004-04-01	1.6111
2004-07-01	8.2303
2004-10-01	7.0443
2005-01-01	3.9309
2005-04-01	5.2499
2005-07-01	0.7592
2005-10-01	9.4966
2006-01-01	6.2733
2006-04-01	-0.0113
2006-07-01	11.4042
2006-10-01	14.5320
2007-01-01	17.7368
2007-04-01	20.1702
2007-07-01	2.3941
2007-10-01	17.6588
2008-01-01	8.6455
2008-04-01	47.3371
2008-07-01	12.5353
2008-10-01	-11.6200
2009-01-01	11.4580
2009-04-01	21.4237
2009-07-01	2.8496
2009-10-01	24.0786
2010-01-01	6.7974
2010-04-01	27.7106
2010-07-01	18.9755
2010-10-01	21.0898
2011-01-01	10.3838
2011-04-01	20.4695
2011-07-01	-2.3042
2011-10-01	10.6016
2012-01-01	25.9989
2012-04-01	-6.4229
2012-07-01	13.6709
2012-10-01	0.5274
2013-01-01	0.4735
2013-04-01	-5.0958
2013-07-01	41.6609
2013-10-01	24.0104
2014-01-01	9.8488
2014-04-01	7.8342
2014-07-01	9.5202
2014-10-01	3.5728
2015-01-01	25.7980
2015-04-01	-2.8717