Quarter	Billions of US Dollars
1960-01-01	19.302
1960-04-01	20.255
1960-07-01	21.283
1960-10-01	22.341
1961-01-01	23.352
1961-04-01	24.457
1961-07-01	25.602
1961-10-01	26.836
1962-01-01	28.152
1962-04-01	29.589
1962-07-01	31.137
1962-10-01	32.769
1963-01-01	34.400
1963-04-01	36.022
1963-07-01	37.487
1963-10-01	38.817
1964-01-01	39.651
1964-04-01	40.453
1964-07-01	41.179
1964-10-01	41.965
1965-01-01	42.836
1965-04-01	43.850
1965-07-01	44.962
1965-10-01	46.228
1966-01-01	47.520
1966-04-01	48.950
1966-07-01	50.478
1966-10-01	52.106
1967-01-01	53.861
1967-04-01	55.742
1967-07-01	57.716
1967-10-01	59.433
1968-01-01	61.042
1968-04-01	62.840
1968-07-01	64.575
1968-10-01	66.288
1969-01-01	67.859
1969-04-01	70.300
1969-07-01	72.342
1969-10-01	75.036
1970-01-01	76.805
1970-04-01	78.927
1970-07-01	81.918
1970-10-01	84.399
1971-01-01	87.285
1971-04-01	90.087
1971-07-01	95.127
1971-10-01	101.599
1972-01-01	107.394
1972-04-01	111.353
1972-07-01	114.793
1972-10-01	118.226
1973-01-01	121.816
1973-04-01	124.868
1973-07-01	133.676
1973-10-01	129.066
1974-01-01	132.044
1974-04-01	133.524
1974-07-01	137.283
1974-10-01	145.670
1975-01-01	156.048
1975-04-01	161.845
1975-07-01	153.147
1975-10-01	158.473
1976-01-01	133.829
1976-04-01	136.667
1976-07-01	138.889
1976-10-01	142.802
1977-01-01	147.141
1977-04-01	152.413
1977-07-01	157.882
1977-10-01	166.339
1978-01-01	168.889
1978-04-01	169.153
1978-07-01	179.883
1978-10-01	186.488
1979-01-01	188.181
1979-04-01	194.345
1979-07-01	209.250
1979-10-01	222.846
1980-01-01	207.607
1980-04-01	235.564
1980-07-01	236.048
1980-10-01	237.272
1981-01-01	219.411
1981-04-01	200.741
1981-07-01	210.795
1981-10-01	220.445
1982-01-01	202.950
1982-04-01	198.354
1982-07-01	199.170
1982-10-01	218.627
1983-01-01	211.157
1983-04-01	206.567
1983-07-01	199.601
1983-10-01	203.820
1984-01-01	219.454
1984-04-01	217.394
1984-07-01	208.662
1984-10-01	215.709
1985-01-01	215.631
1985-04-01	220.424
1985-07-01	240.246
1985-10-01	274.775
1986-01-01	288.430
1986-04-01	308.253
1986-07-01	336.994
1986-10-01	371.059
1987-01-01	393.693
1987-04-01	393.379
1987-07-01	392.895
1987-10-01	475.198
1988-01-01	455.499
1988-04-01	433.821
1988-07-01	426.340
1988-10-01	488.008
1989-01-01	450.694
1989-04-01	446.111
1989-07-01	450.058
1989-10-01	502.615
1990-01-01	516.825
1990-04-01	547.212
1990-07-01	578.962
1990-10-01	656.653
1991-01-01	577.155
1991-04-01	572.129
1991-07-01	630.089
1991-10-01	728.361
1992-01-01	685.488
1992-04-01	762.356
1992-07-01	726.371
1992-10-01	638.846
1993-01-01	591.294
1993-04-01	622.559
1993-07-01	601.787
1993-10-01	573.582
1994-01-01	595.433
1994-04-01	608.230
1994-07-01	612.851
1994-10-01	605.448
1995-01-01	557.218
1995-04-01	594.158
1995-07-01	604.884
1995-10-01	634.625
1996-01-01	636.950
1996-04-01	659.665
1996-07-01	660.143
1996-10-01	672.275
1997-01-01	604.508
1997-04-01	603.930
1997-07-01	591.191
1997-10-01	600.860
1998-01-01	581.367
1998-04-01	598.271
1998-07-01	639.007
1998-10-01	658.082
1999-01-01	599.876
1999-04-01	612.816
1999-07-01	642.293
1999-10-01	638.041
2000-01-01	612.564
2000-04-01	626.637
2000-07-01	582.161
2000-10-01	645.941
2001-01-01	625.866
2001-04-01	613.128
2001-07-01	667.750
2001-10-01	668.052
2002-01-01	663.245
2002-04-01	771.543
2002-07-01	763.587
2002-10-01	840.004
2003-01-01	879.260
2003-04-01	943.889
2003-07-01	963.430
2003-10-01	1085.671
2004-01-01	1047.481
2004-04-01	1072.720
2004-07-01	1100.759
2004-10-01	1247.415
2005-01-01	1204.471
2005-04-01	1140.281
2005-07-01	1144.624
2005-10-01	1156.601
2006-01-01	1205.109
2006-04-01	1299.867
2006-07-01	1311.917
2006-10-01	1412.566
2007-01-01	1445.607
2007-04-01	1517.313
2007-07-01	1619.828
2007-10-01	1766.365
2008-01-01	2004.878
2008-04-01	2014.579
2008-07-01	1829.928
2008-10-01	1754.363
2009-01-01	1714.928
2009-04-01	1852.878
2009-07-01	1897.864
2009-10-01	1868.685
2010-01-01	1747.746
2010-04-01	1599.653
2010-07-01	1788.474
2010-10-01	1762.149
2011-01-01	1890.295
2011-04-01	1938.225
2011-07-01	1810.667
2011-10-01	1726.222
2012-01-01	1792.718
2012-04-01	1693.621
2012-07-01	1732.852
2012-10-01	1774.279
2013-01-01	1695.610
2013-04-01	1722.701
2013-07-01	1773.430
2013-10-01	1795.820
2014-01-01	1800.121
2014-04-01	1786.774
2014-07-01	1648.129
2014-10-01	1568.549
2015-01-01	1396.407
2015-04-01	1443.393
2015-07-01	1438.232
2015-10-01	1370.699
2016-01-01	1421.123
2016-04-01	1398.422
2016-07-01	1403.009
2016-10-01	1308.394
2017-01-01	1334.162
2017-04-01	1418.315
2017-07-01	1447.181
2017-10-01	1495.879
2018-01-01	1534.752