Quarter	Billions of US Dollars
1961-01-01	5.595
1961-04-01	5.617
1961-07-01	5.843
1961-10-01	6.186
1962-01-01	6.522
1962-04-01	6.741
1962-07-01	6.947
1962-10-01	7.277
1963-01-01	7.544
1963-04-01	7.756
1963-07-01	8.069
1963-10-01	8.483
1964-01-01	8.984
1964-04-01	9.376
1964-07-01	9.828
1964-10-01	10.123
1965-01-01	10.569
1965-04-01	10.756
1965-07-01	11.125
1965-10-01	11.600
1966-01-01	12.221
1966-04-01	12.462
1966-07-01	12.699
1966-10-01	13.025
1967-01-01	13.557
1967-04-01	14.095
1967-07-01	14.734
1967-10-01	15.524
1968-01-01	16.035
1968-04-01	16.540
1968-07-01	17.166
1968-10-01	18.278
1969-01-01	18.563
1969-04-01	19.381
1969-07-01	20.460
1969-10-01	21.386
1970-01-01	22.421
1970-04-01	23.246
1970-07-01	23.951
1970-10-01	24.939
1971-01-01	25.466
1971-04-01	26.403
1971-07-01	29.031
1971-10-01	31.394
1972-01-01	32.973
1972-04-01	35.112
1972-07-01	35.644
1972-10-01	37.287
1973-01-01	43.269
1973-04-01	51.239
1973-07-01	57.265
1973-10-01	54.450
1974-01-01	59.367
1974-04-01	63.288
1974-07-01	65.807
1974-10-01	73.827
1975-01-01	79.209
1975-04-01	79.907
1975-07-01	72.947
1975-10-01	77.381
1976-01-01	80.348
1976-04-01	83.995
1976-07-01	94.291
1976-10-01	102.455
1977-01-01	105.183
1977-04-01	111.554
1977-07-01	116.546
1977-10-01	134.022
1978-01-01	147.424
1978-04-01	150.757
1978-07-01	166.892
1978-10-01	188.795
1979-01-01	190.142
1979-04-01	195.883
1979-07-01	211.960
1979-10-01	225.818
1980-01-01	208.836
1980-04-01	235.987
1980-07-01	235.643
1980-10-01	224.213
1981-01-01	207.642
1981-04-01	185.214
1981-07-01	192.604
1981-10-01	205.067
1982-01-01	193.119
1982-04-01	190.026
1982-07-01	189.843
1982-10-01	200.023
1983-01-01	195.046
1983-04-01	188.262
1983-07-01	184.180
1983-10-01	180.787
1984-01-01	193.577
1984-04-01	181.461
1984-07-01	167.340
1984-10-01	163.904
1985-01-01	169.687
1985-04-01	172.455
1985-07-01	197.763
1985-10-01	218.879
1986-01-01	236.905
1986-04-01	254.871
1986-07-01	278.023
1986-10-01	300.140
1987-01-01	326.990
1987-04-01	333.190
1987-07-01	328.469
1987-10-01	393.380
1988-01-01	386.801
1988-04-01	362.949
1988-07-01	354.694
1988-10-01	392.610
1989-01-01	379.194
1989-04-01	378.417
1989-07-01	397.555
1989-10-01	445.815
1990-01-01	458.776
1990-04-01	480.090
1990-07-01	522.593
1990-10-01	558.250
1991-01-01	501.509
1991-04-01	477.990
1991-07-01	527.305
1991-10-01	592.031
1992-01-01	560.670
1992-04-01	612.426
1992-07-01	678.627
1992-10-01	603.396
1993-01-01	613.063
1993-04-01	588.857
1993-07-01	614.338
1993-10-01	589.582
1994-01-01	627.076
1994-04-01	670.391
1994-07-01	700.230
1994-10-01	713.807
1995-01-01	811.817
1995-04-01	825.085
1995-07-01	805.773
1995-10-01	807.548
1996-01-01	804.155
1996-04-01	795.463
1996-07-01	806.037
1996-10-01	808.871
1997-01-01	783.098
1997-04-01	781.681
1997-07-01	793.810
1997-10-01	768.762
1998-01-01	780.473
1998-04-01	815.343
1998-07-01	907.275
1998-10-01	924.806
1999-01-01	883.563
1999-04-01	869.393
1999-07-01	925.357
1999-10-01	895.985
2000-01-01	868.438
2000-04-01	890.832
2000-07-01	840.345
2000-10-01	918.646
2001-01-01	874.531
2001-04-01	855.097
2001-07-01	931.287
2001-10-01	918.347
2002-01-01	915.522
2002-04-01	1049.685
2002-07-01	1060.637
2002-10-01	1137.170
2003-01-01	1193.803
2003-04-01	1271.459
2003-07-01	1317.730
2003-10-01	1498.644
2004-01-01	1453.452
2004-04-01	1452.788
2004-07-01	1496.341
2004-10-01	1667.249
2005-01-01	1600.789
2005-04-01	1540.062
2005-07-01	1559.023
2005-10-01	1535.165
2006-01-01	1590.134
2006-04-01	1685.699
2006-07-01	1711.239
2006-10-01	1789.565
2007-01-01	1850.595
2007-04-01	1894.486
2007-07-01	2021.148
2007-10-01	2113.691
2008-01-01	2325.577
2008-04-01	2368.903
2008-07-01	2164.175
2008-10-01	2114.237
2009-01-01	2044.130
2009-04-01	2188.852
2009-07-01	2275.362
2009-10-01	2260.290
2010-01-01	2161.927
2010-04-01	2021.679
2010-07-01	2273.929
2010-10-01	2258.616
2011-01-01	2429.534
2011-04-01	2521.028
2011-07-01	2376.866
2011-10-01	2319.215
2012-01-01	2410.550
2012-04-01	2303.664
2012-07-01	2371.138
2012-10-01	2412.787
2013-01-01	2344.707
2013-04-01	2406.651
2013-07-01	2488.583
2013-10-01	2537.569
2014-01-01	2540.758
2014-04-01	2535.104
2014-07-01	2344.832
2014-10-01	2357.179
2015-01-01	2130.687
2015-04-01	2226.939
2015-07-01	2229.715
2015-10-01	2159.620
2016-01-01	2273.730
2016-04-01	2226.315
2016-07-01	2298.155
2016-10-01	2155.385
2017-01-01	2196.606
2017-04-01	2351.958
2017-07-01	2443.809
2017-10-01	2469.953
2018-01-01	2573.206