Quarter	Billions of US Dollars
1953-10-01	1.066
1954-01-01	1.094
1954-04-01	1.120
1954-07-01	1.146
1954-10-01	1.171
1955-01-01	1.185
1955-04-01	1.185
1955-07-01	1.199
1955-10-01	1.211
1956-01-01	1.218
1956-04-01	1.226
1956-07-01	1.237
1956-10-01	1.245
1957-01-01	1.262
1957-04-01	1.274
1957-07-01	1.297
1957-10-01	1.313
1958-01-01	1.328
1958-04-01	1.338
1958-07-01	1.357
1958-10-01	1.376
1959-01-01	1.403
1959-04-01	1.426
1959-07-01	1.444
1959-10-01	1.464
1960-01-01	1.514
1960-04-01	1.557
1960-07-01	1.604
1960-10-01	1.646
1961-01-01	1.689
1961-04-01	1.728
1961-07-01	1.786
1961-10-01	1.827
1962-01-01	1.864
1962-04-01	1.896
1962-07-01	1.929
1962-10-01	1.967
1963-01-01	1.998
1963-04-01	2.029
1963-07-01	2.058
1963-10-01	2.089
1964-01-01	2.133
1964-04-01	2.175
1964-07-01	2.214
1964-10-01	2.259
1965-01-01	2.294
1965-04-01	2.330
1965-07-01	2.369
1965-10-01	2.405
1966-01-01	2.461
1966-04-01	2.523
1966-07-01	2.588
1966-10-01	2.652
1967-01-01	2.705
1967-04-01	2.761
1967-07-01	2.813
1967-10-01	2.871
1968-01-01	2.938
1968-04-01	2.999
1968-07-01	3.062
1968-10-01	3.121
1969-01-01	3.232
1969-04-01	3.339
1969-07-01	3.436
1969-10-01	3.544
1970-01-01	3.635
1970-04-01	3.721
1970-07-01	3.811
1970-10-01	3.906
1971-01-01	4.024
1971-04-01	4.155
1971-07-01	4.421
1971-10-01	4.652
1972-01-01	4.873
1972-04-01	5.085
1972-07-01	5.151
1972-10-01	5.281
1973-01-01	6.123
1973-04-01	7.037
1973-07-01	6.926
1973-10-01	6.879
1974-01-01	7.501
1974-04-01	7.679
1974-07-01	7.789
1974-10-01	8.543
1975-01-01	9.645
1975-04-01	9.966
1975-07-01	8.860
1975-10-01	9.467
1976-01-01	9.874
1976-04-01	10.267
1976-07-01	11.085
1976-10-01	11.638
1977-01-01	12.128
1977-04-01	12.583
1977-07-01	12.377
1977-10-01	13.618
1978-01-01	13.588
1978-04-01	13.641
1978-07-01	14.494
1978-10-01	15.133
1979-01-01	15.251
1979-04-01	16.073
1979-07-01	17.156
1979-10-01	17.304
1980-01-01	16.841
1980-04-01	18.846
1980-07-01	19.224
1980-10-01	18.781
1981-01-01	18.740
1981-04-01	17.841
1981-07-01	18.372
1981-10-01	19.550
1982-01-01	19.248
1982-04-01	19.549
1982-07-01	18.089
1982-10-01	18.512
1983-01-01	18.993
1983-04-01	19.907
1983-07-01	19.758
1983-10-01	19.311
1984-01-01	21.040
1984-04-01	21.078
1984-07-01	19.846
1984-10-01	20.469
1985-01-01	21.782
1985-04-01	23.938
1985-07-01	27.832
1985-10-01	32.119
1986-01-01	34.977
1986-04-01	36.748
1986-07-01	39.178
1986-10-01	41.675
1987-01-01	46.759
1987-04-01	49.634
1987-07-01	52.527
1987-10-01	60.802
1988-01-01	62.122
1988-04-01	60.373
1988-07-01	56.506
1988-10-01	60.851
1989-01-01	58.758
1989-04-01	58.422
1989-07-01	61.097
1989-10-01	65.840
1990-01-01	67.439
1990-04-01	70.017
1990-07-01	73.482
1990-10-01	75.710
1991-01-01	67.437
1991-04-01	63.202
1991-07-01	66.255
1991-10-01	70.746
1992-01-01	64.476
1992-04-01	67.862
1992-07-01	72.727
1992-10-01	61.500
1993-01-01	60.292
1993-04-01	58.696
1993-07-01	58.561
1993-10-01	57.095
1994-01-01	59.198
1994-04-01	62.795
1994-07-01	64.896
1994-10-01	66.453
1995-01-01	78.072
1995-04-01	80.131
1995-07-01	80.215
1995-10-01	82.145
1996-01-01	82.982
1996-04-01	84.830
1996-07-01	86.930
1996-10-01	90.646
1997-01-01	90.411
1997-04-01	86.861
1997-07-01	93.314
1997-10-01	93.128
1998-01-01	93.046
1998-04-01	95.501
1998-07-01	100.180
1998-10-01	97.587
1999-01-01	97.191
1999-04-01	99.401
1999-07-01	103.229
1999-10-01	101.931
2000-01-01	100.140
2000-04-01	104.098
2000-07-01	101.809
2000-10-01	106.680
2001-01-01	106.568
2001-04-01	107.450
2001-07-01	114.997
2001-10-01	115.738
2002-01-01	120.135
2002-04-01	146.629
2002-07-01	148.912
2002-10-01	160.949
2003-01-01	156.642
2003-04-01	160.464
2003-07-01	168.704
2003-10-01	181.454
2004-01-01	179.445
2004-04-01	183.588
2004-07-01	193.940
2004-10-01	220.080
2005-01-01	217.189
2005-04-01	219.340
2005-07-01	228.368
2005-10-01	232.822
2006-01-01	250.365
2006-04-01	277.574
2006-07-01	275.175
2006-10-01	299.573
2007-01-01	316.092
2007-04-01	340.871
2007-07-01	379.455
2007-10-01	390.860
2008-01-01	424.544
2008-04-01	434.824
2008-07-01	375.363
2008-10-01	314.028
2009-01-01	323.754
2009-04-01	332.149
2009-07-01	356.718
2009-10-01	353.038
2010-01-01	329.686
2010-04-01	304.368
2010-07-01	344.349
2010-10-01	343.687
2011-01-01	362.344
2011-04-01	373.930
2011-07-01	348.512
2011-10-01	339.291
2012-01-01	352.008
2012-04-01	339.249
2012-07-01	354.728
2012-10-01	363.549
2013-01-01	347.264
2013-04-01	344.339
2013-07-01	348.033
2013-10-01	348.653
2014-01-01	356.378
2014-04-01	357.165
2014-07-01	343.004
2014-10-01	304.256
2015-01-01	286.489
2015-04-01	301.934
2015-07-01	282.400
2015-10-01	272.514
2016-01-01	292.442
2016-04-01	292.691
2016-07-01	307.200
2016-10-01	288.190
2017-01-01	293.838
2017-04-01	305.992
2017-07-01	326.875
2017-10-01	320.659
2018-01-01	345.027