Quarter	Billions of US Dollars
1975-04-01	0.0160
1975-07-01	0.0160
1975-10-01	0.0160
1976-01-01	0.0160
1976-04-01	0.0160
1976-07-01	0.0160
1976-10-01	0.0160
1977-01-01	0.0160
1977-04-01	0.0160
1977-07-01	0.0843
1977-10-01	0.0885
1978-01-01	0.1796
1978-04-01	0.2797
1978-07-01	0.2943
1978-10-01	0.3819
1979-01-01	0.5404
1979-04-01	0.7229
1979-07-01	0.7951
1979-10-01	0.8752
1980-01-01	0.8187
1980-04-01	0.8826
1980-07-01	1.0171
1980-10-01	1.0193
1981-01-01	0.9778
1981-04-01	1.0317
1981-07-01	1.1191
1981-10-01	1.3033
1982-01-01	1.3447
1982-04-01	1.3079
1982-07-01	1.2583
1982-10-01	1.3179
1983-01-01	1.3031
1983-04-01	1.2595
1983-07-01	1.2532
1983-10-01	1.2480
1984-01-01	1.2708
1984-04-01	1.1658
1984-07-01	1.1006
1984-10-01	1.0855
1985-01-01	1.0379
1985-04-01	1.0442
1985-07-01	1.1127
1985-10-01	1.0896
1986-01-01	1.0438
1986-04-01	0.9904
1986-07-01	1.0293
1986-10-01	0.8659
1987-01-01	0.8048
1987-04-01	0.6973
1987-07-01	0.6815
1987-10-01	0.7378
1988-01-01	0.7046
1988-04-01	0.6733
1988-07-01	0.6624
1988-10-01	0.6220
1989-01-01	0.5963
1989-04-01	0.5441
1989-07-01	0.4326
1989-10-01	0.3136
1990-01-01	0.2828
1990-04-01	0.2900
1990-07-01	0.1376
1990-10-01	0.1604
1991-01-01	0.1569
1991-04-01	0.2235
1991-07-01	0.2263
1991-10-01	0.9579
1992-01-01	1.0261
1992-04-01	1.1916
1992-07-01	1.7171
1992-10-01	2.1059
1993-01-01	2.5509
1993-04-01	19.7862
1993-07-01	20.4913
1993-10-01	32.1265
1994-01-01	33.0676
1994-04-01	33.0033
1994-07-01	34.0361
1994-10-01	36.3557
1995-01-01	36.6698
1995-04-01	38.5522
1995-07-01	39.8983
1995-10-01	41.9437
1996-01-01	43.7058
1996-04-01	47.6475
1996-07-01	49.9053
1996-10-01	53.3189
1997-01-01	57.5917
1997-04-01	59.9394
1997-07-01	65.4911
1997-10-01	65.2551
1998-01-01	68.0735
1998-04-01	75.0224
1998-07-01	78.4172
1998-10-01	72.7679
1999-01-01	72.8070
1999-04-01	75.6428
1999-07-01	78.6696
1999-10-01	79.8638
2000-01-01	83.3585
2000-04-01	86.8841
2000-07-01	86.9802
2000-10-01	86.5103
2001-01-01	86.3169
2001-04-01	90.3285
2001-07-01	91.8645
2001-10-01	90.0957
2002-01-01	88.1816
2002-04-01	91.2426
2002-07-01	89.6314
2002-10-01	91.1828
2003-01-01	91.3222
2003-04-01	92.2339
2003-07-01	92.2422
2003-10-01	94.7489
2004-01-01	93.2525
2004-04-01	90.1353
2004-07-01	89.5307
2004-10-01	93.0904
2005-01-01	91.3981
2005-04-01	58.4961
2005-07-01	58.1556
2005-10-01	57.6676
2006-01-01	58.4446
2006-04-01	59.4913
2006-07-01	59.1608
2006-10-01	60.7186
2007-01-01	60.6260
2007-04-01	61.4661
2007-07-01	61.9278
2007-10-01	63.3213
2008-01-01	63.6378
2008-04-01	61.6098
2008-07-01	58.4608
2008-10-01	51.1976
2009-01-01	49.3092
2009-04-01	49.8706
2009-07-01	50.7990
2009-10-01	50.4775
2010-01-01	48.6240
2010-04-01	47.6373
2010-07-01	50.6992
2010-10-01	50.9908
2011-01-01	53.6839
2011-04-01	53.9803
2011-07-01	52.0788
2011-10-01	51.0011
2012-01-01	51.4010
2012-04-01	49.8355
2012-07-01	50.3302
2012-10-01	50.7241
2013-01-01	50.3693
2013-04-01	50.9608
2013-07-01	52.0177
2013-10-01	52.4884
2014-01-01	52.3843
2014-04-01	53.4748
2014-07-01	51.7636
2014-10-01	50.0946
2015-01-01	49.3945
2015-04-01	50.8719