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	0.4754
1979-04-01	0.6579
1979-07-01	0.7301
1979-10-01	0.8102
1980-01-01	0.7537
1980-04-01	0.8176
1980-07-01	0.9521
1980-10-01	0.9543
1981-01-01	0.9128
1981-04-01	0.9667
1981-07-01	0.9691
1981-10-01	1.0533
1982-01-01	0.9947
1982-04-01	0.9579
1982-07-01	0.9083
1982-10-01	0.9679
1983-01-01	0.9531
1983-04-01	0.9095
1983-07-01	0.9032
1983-10-01	0.8980
1984-01-01	0.9208
1984-04-01	0.8158
1984-07-01	0.7506
1984-10-01	0.7355
1985-01-01	0.6879
1985-04-01	0.6942
1985-07-01	0.7627
1985-10-01	0.7396
1986-01-01	0.6938
1986-04-01	0.6404
1986-07-01	0.6793
1986-10-01	0.6159
1987-01-01	0.6548
1987-04-01	0.5473
1987-07-01	0.5315
1987-10-01	0.5878
1988-01-01	0.5546
1988-04-01	0.5233
1988-07-01	0.5124
1988-10-01	0.4720
1989-01-01	0.4463
1989-04-01	0.3941
1989-07-01	0.3676
1989-10-01	0.2486
1990-01-01	0.2178
1990-04-01	0.2250
1990-07-01	0.0726
1990-10-01	0.0954
1991-01-01	0.0919
1991-04-01	0.1085
1991-07-01	0.1113
1991-10-01	0.8429
1992-01-01	1.0811
1992-04-01	1.3366
1992-07-01	1.8621
1992-10-01	2.2509
1993-01-01	2.6609
1993-04-01	19.9962
1993-07-01	20.7063
1993-10-01	32.5115
1994-01-01	33.7039
1994-04-01	33.7971
1994-07-01	34.8801
1994-10-01	37.0994
1995-01-01	37.2863
1995-04-01	39.1512
1995-07-01	40.5708
1995-10-01	42.6712
1996-01-01	44.4333
1996-04-01	48.1397
1996-07-01	50.4023
1996-10-01	53.6788
1997-01-01	58.5288
1997-04-01	60.7047
1997-07-01	66.3084
1997-10-01	66.2074
1998-01-01	69.1385
1998-04-01	76.2460
1998-07-01	79.9775
1998-10-01	74.4674
1999-01-01	74.6042
1999-04-01	78.0378
1999-07-01	80.9883
1999-10-01	82.1745
2000-01-01	85.8862
2000-04-01	89.9008
2000-07-01	89.7886
2000-10-01	89.4902
2001-01-01	89.4211
2001-04-01	93.1741
2001-07-01	94.6824
2001-10-01	92.9653
2002-01-01	90.7157
2002-04-01	93.8675
2002-07-01	92.2957
2002-10-01	93.6768
2003-01-01	93.5743
2003-04-01	94.0881
2003-07-01	93.8247
2003-10-01	96.5490
2004-01-01	95.0557
2004-04-01	92.1825
2004-07-01	91.4035
2004-10-01	94.7300
2005-01-01	92.8478
2005-04-01	60.0732
2005-07-01	59.8528
2005-10-01	59.6957
2006-01-01	60.5034
2006-04-01	61.3390
2006-07-01	61.2617
2006-10-01	62.8442
2007-01-01	62.7653
2007-04-01	64.7350
2007-07-01	67.2447
2007-10-01	68.6726
2008-01-01	68.9994
2008-04-01	66.9904
2008-07-01	63.8599
2008-10-01	56.1272
2009-01-01	54.2197
2009-04-01	54.5194
2009-07-01	53.2545
2009-10-01	52.5024
2010-01-01	50.6318
2010-04-01	50.0093
2010-07-01	52.9685
2010-10-01	53.3656
2011-01-01	56.0141
2011-04-01	56.5254
2011-07-01	54.3909
2011-10-01	53.0223
2012-01-01	53.1657
2012-04-01	51.4836
2012-07-01	51.9739
2012-10-01	52.3629
2013-01-01	51.5973
2013-04-01	52.0236
2013-07-01	52.7172
2013-10-01	52.9801
2014-01-01	52.8647
2014-04-01	53.6146
2014-07-01	51.5312
2014-10-01	50.0567
2015-01-01	49.3870
2015-04-01	50.8647