Quarter	Billions of US Dollars
1952-01-01	189.293
1952-04-01	195.577
1952-07-01	200.880
1952-10-01	208.132
1953-01-01	211.975
1953-04-01	218.127
1953-07-01	222.132
1953-10-01	225.767
1954-01-01	226.957
1954-04-01	231.822
1954-07-01	237.222
1954-10-01	244.211
1955-01-01	248.948
1955-04-01	259.377
1955-07-01	267.356
1955-10-01	277.617
1956-01-01	282.304
1956-04-01	291.311
1956-07-01	297.383
1956-10-01	305.291
1957-01-01	309.274
1957-04-01	318.147
1957-07-01	323.451
1957-10-01	329.585
1958-01-01	330.838
1958-04-01	336.654
1958-07-01	342.246
1958-10-01	352.516
1959-01-01	357.062
1959-04-01	369.456
1959-07-01	378.124
1959-10-01	389.209
1960-01-01	393.312
1960-04-01	404.512
1960-07-01	410.756
1960-10-01	420.477
1961-01-01	423.016
1961-04-01	433.052
1961-07-01	439.847
1961-10-01	452.605
1962-01-01	456.421
1962-04-01	469.346
1962-07-01	478.750
1962-10-01	492.520
1963-01-01	498.502
1963-04-01	513.521
1963-07-01	524.011
1963-10-01	540.367
1964-01-01	547.510
1964-04-01	563.882
1964-07-01	574.871
1964-10-01	591.322
1965-01-01	601.145
1965-04-01	619.309
1965-07-01	631.510
1965-10-01	649.650
1966-01-01	661.449
1966-04-01	682.868
1966-07-01	692.403
1966-10-01	706.595
1967-01-01	713.770
1967-04-01	731.651
1967-07-01	743.298
1967-10-01	773.178
1968-01-01	773.705
1968-04-01	797.850
1968-07-01	812.919
1968-10-01	839.348
1969-01-01	848.049
1969-04-01	874.909
1969-07-01	890.459
1969-10-01	914.056
1970-01-01	918.764
1970-04-01	942.369
1970-07-01	959.238
1970-10-01	979.104
1971-01-01	992.141
1971-04-01	1022.640
1971-07-01	1046.928
1971-10-01	1074.708
1972-01-01	1095.525
1972-04-01	1135.650
1972-07-01	1163.951
1972-10-01	1205.632
1973-01-01	1240.613
1973-04-01	1288.128
1973-07-01	1328.508
1973-10-01	1364.255
1974-01-01	1389.677
1974-04-01	1441.086
1974-07-01	1478.518
1974-10-01	1511.787
1975-01-01	1520.198
1975-04-01	1546.981
1975-07-01	1573.134
1975-10-01	1607.743
1976-01-01	1628.360
1976-04-01	1676.159
1976-07-01	1716.803
1976-10-01	1767.689
1977-01-01	1810.933
1977-04-01	1881.497
1977-07-01	1943.332
1977-10-01	2016.642
1978-01-01	2069.065
1978-04-01	2159.621
1978-07-01	2234.629
1978-10-01	2312.286
1979-01-01	2375.071
1979-04-01	2473.249
1979-07-01	2563.233
1979-10-01	2640.698
1980-01-01	2710.187
1980-04-01	2749.690
1980-07-01	2812.025
1980-10-01	2894.875
1981-01-01	2938.914
1981-04-01	3034.358
1981-07-01	3115.275
1981-10-01	3185.024
1982-01-01	3231.285
1982-04-01	3303.720
1982-07-01	3351.038
1982-10-01	3405.496
1983-01-01	3446.797
1983-04-01	3538.190
1983-07-01	3635.939
1983-10-01	3755.831
1984-01-01	3858.611
1984-04-01	4014.861
1984-07-01	4137.947
1984-10-01	4298.294
1985-01-01	4424.491
1985-04-01	4569.161
1985-07-01	4704.380
1985-10-01	4901.774
1986-01-01	4987.447
1986-04-01	5133.194
1986-07-01	5281.521
1986-10-01	5458.288
1987-01-01	5522.151
1987-04-01	5676.103
1987-07-01	5805.067
1987-10-01	5912.835
1988-01-01	6030.839
1988-04-01	6199.622
1988-07-01	6335.706
1988-10-01	6491.856
1989-01-01	6603.071
1989-04-01	6763.420
1989-07-01	6874.860
1989-10-01	7011.288
1990-01-01	7137.483
1990-04-01	7247.593
1990-07-01	7327.919
1990-10-01	7399.996
1991-01-01	7409.052
1991-04-01	7478.684
1991-07-01	7481.090
1991-10-01	7520.721
1992-01-01	7552.495
1992-04-01	7593.956
1992-07-01	7648.352
1992-10-01	7711.596
1993-01-01	7749.324
1993-04-01	7856.666
1993-07-01	7963.010
1993-10-01	8083.854
1994-01-01	8188.956
1994-04-01	8323.691
1994-07-01	8447.634
1994-10-01	8615.536
1995-01-01	8722.083
1995-04-01	8891.071
1995-07-01	9034.918
1995-10-01	9186.124
1996-01-01	9314.544
1996-04-01	9489.654
1996-07-01	9633.748
1996-10-01	9765.763
1997-01-01	9891.876
1997-04-01	10079.695
1997-07-01	10302.782
1997-10-01	10489.978
1998-01-01	10698.899
1998-04-01	10998.089
1998-07-01	11224.473
1998-10-01	11499.940
1999-01-01	11762.989
1999-04-01	12032.910
1999-07-01	12382.503
1999-10-01	12666.437
2000-01-01	12968.844
2000-04-01	13300.184
2000-07-01	13570.622
2000-10-01	13812.359
2001-01-01	13918.104
2001-04-01	14232.113
2001-07-01	14543.778
2001-10-01	14728.705
2002-01-01	14901.965
2002-04-01	15121.842
2002-07-01	15356.269
2002-10-01	15651.974
2003-01-01	15852.949
2003-04-01	16270.198
2003-07-01	16561.957
2003-10-01	16820.513
2004-01-01	17158.146
2004-04-01	17541.160
2004-07-01	17919.729
2004-10-01	18405.601
2005-01-01	18736.371
2005-04-01	19225.294
2005-07-01	19706.860
2005-10-01	20183.765
2006-01-01	20722.966
2006-04-01	21283.717
2006-07-01	21753.280
2006-10-01	22285.172
2007-01-01	22689.995
2007-04-01	23305.352
2007-07-01	23855.562
2007-10-01	24351.697
2008-01-01	24668.756
2008-04-01	24817.474
2008-07-01	25092.052
2008-10-01	24804.976
2009-01-01	24616.340
2009-04-01	24507.088
2009-07-01	24339.799
2009-10-01	24120.718
2010-01-01	23954.136
2010-04-01	23809.971
2010-07-01	23808.530
2010-10-01	23723.427
2011-01-01	23707.329
2011-04-01	23711.978
2011-07-01	23736.230
2011-10-01	23837.056
2012-01-01	23868.464
2012-04-01	23923.308
2012-07-01	24123.691
2012-10-01	24347.053
2013-01-01	24391.576
2013-04-01	24545.272
2013-07-01	24791.026
2013-10-01	24964.761
2014-01-01	25093.368
2014-04-01	25369.687
2014-07-01	25646.763
2014-10-01	25919.112
2015-01-01	26113.366
2015-04-01	26508.762
2015-07-01	26716.992
2015-10-01	26902.054
2016-01-01	27176.145
2016-04-01	27465.839
2016-07-01	27861.445
2016-10-01	28036.050
2017-01-01	28353.600
2017-04-01	28720.574
2017-07-01	29043.727
2017-10-01	29403.959
2018-01-01	29597.455