Quarter	Billions of US Dollars
1953-10-01	4.019
1954-01-01	4.127
1954-04-01	4.225
1954-07-01	4.320
1954-10-01	4.416
1955-01-01	4.470
1955-04-01	4.469
1955-07-01	4.521
1955-10-01	4.568
1956-01-01	4.592
1956-04-01	4.622
1956-07-01	4.663
1956-10-01	4.694
1957-01-01	4.759
1957-04-01	4.805
1957-07-01	4.891
1957-10-01	4.952
1958-01-01	5.006
1958-04-01	5.047
1958-07-01	5.116
1958-10-01	5.189
1959-01-01	5.289
1959-04-01	5.378
1959-07-01	5.445
1959-10-01	5.521
1960-01-01	5.708
1960-04-01	5.871
1960-07-01	6.049
1960-10-01	6.206
1961-01-01	6.371
1961-04-01	6.517
1961-07-01	6.737
1961-10-01	6.888
1962-01-01	7.028
1962-04-01	7.152
1962-07-01	7.275
1962-10-01	7.417
1963-01-01	7.533
1963-04-01	7.653
1963-07-01	7.761
1963-10-01	7.877
1964-01-01	8.046
1964-04-01	8.201
1964-07-01	8.350
1964-10-01	8.519
1965-01-01	8.651
1965-04-01	8.786
1965-07-01	8.933
1965-10-01	9.070
1966-01-01	9.281
1966-04-01	9.515
1966-07-01	9.759
1966-10-01	10.000
1967-01-01	10.200
1967-04-01	10.413
1967-07-01	10.609
1967-10-01	10.827
1968-01-01	11.080
1968-04-01	11.308
1968-07-01	11.547
1968-10-01	11.769
1969-01-01	12.187
1969-04-01	12.591
1969-07-01	12.957
1969-10-01	13.363
1970-01-01	13.707
1970-04-01	14.032
1970-07-01	14.373
1970-10-01	14.729
1971-01-01	15.173
1971-04-01	15.671
1971-07-01	16.674
1971-10-01	17.544
1972-01-01	18.376
1972-04-01	19.177
1972-07-01	19.425
1972-10-01	19.917
1973-01-01	23.092
1973-04-01	26.536
1973-07-01	26.118
1973-10-01	25.943
1974-01-01	28.286
1974-04-01	28.960
1974-07-01	29.374
1974-10-01	32.217
1975-01-01	36.374
1975-04-01	37.989
1975-07-01	34.032
1975-10-01	36.811
1976-01-01	38.736
1976-04-01	40.293
1976-07-01	43.951
1976-10-01	46.993
1977-01-01	48.858
1977-04-01	50.491
1977-07-01	50.819
1977-10-01	56.978
1978-01-01	56.767
1978-04-01	57.378
1978-07-01	61.933
1978-10-01	65.064
1979-01-01	65.155
1979-04-01	66.661
1979-07-01	70.465
1979-10-01	71.159
1980-01-01	69.262
1980-04-01	76.211
1980-07-01	78.679
1980-10-01	76.646
1981-01-01	76.751
1981-04-01	70.086
1981-07-01	73.023
1981-10-01	76.822
1982-01-01	75.946
1982-04-01	77.348
1982-07-01	72.425
1982-10-01	74.543
1983-01-01	75.548
1983-04-01	77.123
1983-07-01	78.219
1983-10-01	76.925
1984-01-01	82.319
1984-04-01	81.046
1984-07-01	76.759
1984-10-01	77.671
1985-01-01	81.915
1985-04-01	84.887
1985-07-01	96.889
1985-10-01	105.979
1986-01-01	113.772
1986-04-01	117.993
1986-07-01	122.941
1986-10-01	126.757
1987-01-01	141.636
1987-04-01	149.734
1987-07-01	156.009
1987-10-01	172.201
1988-01-01	176.466
1988-04-01	171.556
1988-07-01	166.888
1988-10-01	177.707
1989-01-01	173.693
1989-04-01	171.229
1989-07-01	179.026
1989-10-01	188.459
1990-01-01	192.905
1990-04-01	199.745
1990-07-01	210.191
1990-10-01	217.608
1991-01-01	193.753
1991-04-01	186.131
1991-07-01	198.480
1991-10-01	209.978
1992-01-01	203.064
1992-04-01	217.273
1992-07-01	225.472
1992-10-01	193.000
1993-01-01	194.240
1993-04-01	188.479
1993-07-01	186.857
1993-10-01	177.584
1994-01-01	183.607
1994-04-01	191.236
1994-07-01	196.535
1994-10-01	194.540
1995-01-01	214.769
1995-04-01	218.553
1995-07-01	216.569
1995-10-01	216.389
1996-01-01	217.819
1996-04-01	218.624
1996-07-01	221.393
1996-10-01	228.464
1997-01-01	229.850
1997-04-01	220.996
1997-07-01	233.672
1997-10-01	233.732
1998-01-01	233.751
1998-04-01	242.820
1998-07-01	254.403
1998-10-01	252.913
1999-01-01	253.072
1999-04-01	255.404
1999-07-01	260.274
1999-10-01	258.710
2000-01-01	254.207
2000-04-01	260.875
2000-07-01	258.841
2000-10-01	266.588
2001-01-01	264.304
2001-04-01	269.162
2001-07-01	281.591
2001-10-01	284.778
2002-01-01	298.254
2002-04-01	356.035
2002-07-01	361.175
2002-10-01	391.452
2003-01-01	385.802
2003-04-01	395.832
2003-07-01	409.390
2003-10-01	429.982
2004-01-01	431.557
2004-04-01	446.392
2004-07-01	473.652
2004-10-01	536.910
2005-01-01	524.636
2005-04-01	521.990
2005-07-01	533.154
2005-10-01	533.788
2006-01-01	566.495
2006-04-01	616.952
2006-07-01	611.555
2006-10-01	649.011
2007-01-01	695.878
2007-04-01	752.777
2007-07-01	830.025
2007-10-01	876.277
2008-01-01	979.816
2008-04-01	1020.689
2008-07-01	927.109
2008-10-01	803.683
2009-01-01	846.014
2009-04-01	890.372
2009-07-01	964.319
2009-10-01	949.577
2010-01-01	929.245
2010-04-01	875.529
2010-07-01	985.876
2010-10-01	1001.818
2011-01-01	1077.000
2011-04-01	1114.652
2011-07-01	1037.501
2011-10-01	1018.847
2012-01-01	1143.499
2012-04-01	1099.658
2012-07-01	1162.471
2012-10-01	1201.273
2013-01-01	1145.324
2013-04-01	1126.728
2013-07-01	1135.957
2013-10-01	1131.707
2014-01-01	1158.803
2014-04-01	1141.881
2014-07-01	1100.615
2014-10-01	967.774
2015-01-01	912.498
2015-04-01	955.785
2015-07-01	900.139
2015-10-01	880.450
2016-01-01	939.530
2016-04-01	935.581
2016-07-01	977.963
2016-10-01	920.537
2017-01-01	931.200
2017-04-01	966.330
2017-07-01	1014.443
2017-10-01	990.976
2018-01-01	1040.408