Quarter	Billions of US Dollars
1960-01-01	19.855
1960-04-01	20.845
1960-07-01	21.845
1960-10-01	22.846
1961-01-01	23.947
1961-04-01	25.120
1961-07-01	26.275
1961-10-01	27.431
1962-01-01	28.931
1962-04-01	30.447
1962-07-01	31.980
1962-10-01	33.513
1963-01-01	35.297
1963-04-01	37.099
1963-07-01	38.870
1963-10-01	40.736
1964-01-01	41.425
1964-04-01	42.292
1964-07-01	43.168
1964-10-01	44.072
1965-01-01	45.183
1965-04-01	46.306
1965-07-01	47.412
1965-10-01	48.577
1966-01-01	50.104
1966-04-01	51.680
1966-07-01	53.242
1966-10-01	54.770
1967-01-01	56.669
1967-04-01	58.625
1967-07-01	60.681
1967-10-01	62.550
1968-01-01	64.368
1968-04-01	66.433
1968-07-01	68.360
1968-10-01	70.070
1969-01-01	71.852
1969-04-01	74.370
1969-07-01	76.396
1969-10-01	79.167
1970-01-01	81.165
1970-04-01	83.576
1970-07-01	86.814
1970-10-01	89.275
1971-01-01	92.745
1971-04-01	95.836
1971-07-01	101.082
1971-10-01	107.689
1972-01-01	113.918
1972-04-01	118.194
1972-07-01	121.984
1972-10-01	125.899
1973-01-01	131.283
1973-04-01	135.883
1973-07-01	146.123
1973-10-01	140.613
1974-01-01	143.690
1974-04-01	144.354
1974-07-01	147.300
1974-10-01	155.560
1975-01-01	166.523
1975-04-01	173.175
1975-07-01	164.518
1975-10-01	170.789
1976-01-01	143.827
1976-04-01	144.866
1976-07-01	147.487
1976-10-01	152.820
1977-01-01	157.896
1977-04-01	162.748
1977-07-01	167.894
1977-10-01	177.407
1978-01-01	177.114
1978-04-01	175.982
1978-07-01	188.894
1978-10-01	200.387
1979-01-01	199.842
1979-04-01	204.116
1979-07-01	219.778
1979-10-01	240.032
1980-01-01	221.020
1980-04-01	252.037
1980-07-01	248.421
1980-10-01	256.528
1981-01-01	235.156
1981-04-01	213.466
1981-07-01	222.019
1981-10-01	235.737
1982-01-01	213.793
1982-04-01	207.476
1982-07-01	208.751
1982-10-01	234.102
1983-01-01	223.985
1983-04-01	217.484
1983-07-01	208.805
1983-10-01	218.802
1984-01-01	233.016
1984-04-01	229.947
1984-07-01	220.375
1984-10-01	230.034
1985-01-01	229.109
1985-04-01	233.149
1985-07-01	252.308
1985-10-01	297.921
1986-01-01	305.578
1986-04-01	328.281
1986-07-01	359.317
1986-10-01	408.948
1987-01-01	429.546
1987-04-01	431.044
1987-07-01	422.847
1987-10-01	527.094
1988-01-01	496.363
1988-04-01	477.211
1988-07-01	464.712
1988-10-01	545.982
1989-01-01	518.278
1989-04-01	536.334
1989-07-01	554.056
1989-10-01	655.068
1990-01-01	663.636
1990-04-01	702.635
1990-07-01	732.720
1990-10-01	852.920
1991-01-01	735.913
1991-04-01	735.424
1991-07-01	804.298
1991-10-01	947.570
1992-01-01	881.417
1992-04-01	979.930
1992-07-01	927.028
1992-10-01	820.720
1993-01-01	755.657
1993-04-01	794.849
1993-07-01	762.113
1993-10-01	733.296
1994-01-01	753.848
1994-04-01	773.892
1994-07-01	777.032
1994-10-01	781.135
1995-01-01	741.610
1995-04-01	793.376
1995-07-01	806.235
1995-10-01	844.967
1996-01-01	851.695
1996-04-01	883.198
1996-07-01	885.263
1996-10-01	904.428
1997-01-01	817.521
1997-04-01	819.536
1997-07-01	804.729
1997-10-01	815.575
1998-01-01	791.243
1998-04-01	823.442
1998-07-01	880.469
1998-10-01	906.405
1999-01-01	837.976
1999-04-01	850.132
1999-07-01	893.945
1999-10-01	886.510
2000-01-01	857.938
2000-04-01	877.943
2000-07-01	816.411
2000-10-01	907.556
2001-01-01	879.858
2001-04-01	866.275
2001-07-01	944.858
2001-10-01	942.914
2002-01-01	941.323
2002-04-01	1099.696
2002-07-01	1094.273
2002-10-01	1202.809
2003-01-01	1262.269
2003-04-01	1357.571
2003-07-01	1393.319
2003-10-01	1567.736
2004-01-01	1524.883
2004-04-01	1565.340
2004-07-01	1616.811
2004-10-01	1836.660
2005-01-01	1780.609
2005-04-01	1698.290
2005-07-01	1714.421
2005-10-01	1735.878
2006-01-01	1816.963
2006-04-01	1964.466
2006-07-01	1989.451
2006-10-01	2141.774
2007-01-01	2205.244
2007-04-01	2311.456
2007-07-01	2470.190
2007-10-01	2671.229
2008-01-01	2987.536
2008-04-01	3011.721
2008-07-01	2739.584
2008-10-01	2642.392
2009-01-01	2571.188
2009-04-01	2781.336
2009-07-01	2864.708
2009-10-01	2831.235
2010-01-01	2660.065
2010-04-01	2443.256
2010-07-01	2735.541
2010-10-01	2697.587
2011-01-01	2893.393
2011-04-01	2969.527
2011-07-01	2779.128
2011-10-01	2654.245
2012-01-01	2745.511
2012-04-01	2591.103
2012-07-01	2651.055
2012-10-01	2710.042
2013-01-01	2598.732
2013-04-01	2641.817
2013-07-01	2717.531
2013-10-01	2757.722
2014-01-01	2757.948
2014-04-01	2737.659
2014-07-01	2518.723
2014-10-01	2409.269
2015-01-01	2139.729
2015-04-01	2217.241
2015-07-01	2213.174
2015-10-01	2124.059
2016-01-01	2208.782
2016-04-01	2168.471
2016-07-01	2179.146
2016-10-01	2043.700
2017-01-01	2083.241
2017-04-01	2218.643
2017-07-01	2276.916
2017-10-01	2346.623
2018-01-01	2406.112