Quarter	Billions of US Dollars
1963-01-01	19.213
1963-04-01	19.796
1963-07-01	20.215
1963-10-01	21.015
1964-01-01	22.196
1964-04-01	22.836
1964-07-01	23.306
1964-10-01	24.570
1965-01-01	25.345
1965-04-01	26.496
1965-07-01	26.587
1965-10-01	27.172
1966-01-01	28.547
1966-04-01	29.068
1966-07-01	29.252
1966-10-01	29.406
1967-01-01	30.632
1967-04-01	30.851
1967-07-01	31.105
1967-10-01	27.799
1968-01-01	28.954
1968-04-01	29.747
1968-07-01	29.778
1968-10-01	30.775
1969-01-01	32.547
1969-04-01	33.008
1969-07-01	33.607
1969-10-01	34.319
1970-01-01	36.065
1970-04-01	37.559
1970-07-01	37.865
1970-10-01	38.717
1971-01-01	40.677
1971-04-01	41.800
1971-07-01	44.052
1971-10-01	47.205
1972-01-01	52.891
1972-04-01	51.796
1972-07-01	53.651
1972-10-01	55.250
1973-01-01	62.624
1973-04-01	68.108
1973-07-01	67.294
1973-10-01	69.854
1974-01-01	75.410
1974-04-01	78.069
1974-07-01	79.039
1974-10-01	81.804
1975-01-01	86.893
1975-04-01	88.757
1975-07-01	82.298
1975-10-01	83.482
1976-01-01	80.629
1976-04-01	78.664
1976-07-01	76.764
1976-10-01	81.608
1977-01-01	83.885
1977-04-01	87.566
1977-07-01	91.876
1977-10-01	104.603
1978-01-01	104.929
1978-04-01	110.542
1978-07-01	120.622
1978-10-01	129.611
1979-01-01	138.125
1979-04-01	152.238
1979-07-01	159.974
1979-10-01	167.710
1980-01-01	172.037
1980-04-01	195.762
1980-07-01	206.688
1980-10-01	213.563
1981-01-01	208.553
1981-04-01	185.004
1981-07-01	180.358
1981-10-01	209.489
1982-01-01	206.980
1982-04-01	211.264
1982-07-01	217.360
1982-10-01	214.764
1983-01-01	205.094
1983-04-01	219.965
1983-07-01	222.932
1983-10-01	224.271
1984-01-01	232.697
1984-04-01	227.779
1984-07-01	218.564
1984-10-01	211.981
1985-01-01	237.514
1985-04-01	255.717
1985-07-01	286.942
1985-10-01	305.506
1986-01-01	327.064
1986-04-01	351.771
1986-07-01	347.299
1986-10-01	371.741
1987-01-01	416.961
1987-04-01	434.462
1987-07-01	459.505
1987-10-01	552.888
1988-01-01	588.054
1988-04-01	566.168
1988-07-01	591.452
1988-10-01	660.978
1989-01-01	648.631
1989-04-01	621.308
1989-07-01	686.666
1989-10-01	708.103
1990-01-01	751.918
1990-04-01	818.030
1990-07-01	902.658
1990-10-01	948.284
1991-01-01	870.574
1991-04-01	820.389
1991-07-01	898.870
1991-10-01	967.828
1992-01-01	905.449
1992-04-01	1003.646
1992-07-01	943.388
1992-10-01	808.079
1993-01-01	801.230
1993-04-01	806.293
1993-07-01	811.310
1993-10-01	799.409
1994-01-01	805.545
1994-04-01	837.410
1994-07-01	868.074
1994-10-01	869.419
1995-01-01	915.263
1995-04-01	915.464
1995-07-01	920.939
1995-10-01	919.536
1996-01-01	921.245
1996-04-01	951.985
1996-07-01	975.184
1996-10-01	1078.778
1997-01-01	1045.061
1997-04-01	1087.482
1997-07-01	1107.111
1997-10-01	1148.640
1998-01-01	1188.552
1998-04-01	1204.021
1998-07-01	1248.674
1998-10-01	1233.106
1999-01-01	1221.541
1999-04-01	1227.186
1999-07-01	1302.980
1999-10-01	1301.265
2000-01-01	1318.750
2000-04-01	1284.884
2000-07-01	1273.083
2000-10-01	1321.197
2001-01-01	1288.997
2001-04-01	1301.249
2001-07-01	1380.142
2001-10-01	1387.270
2002-01-01	1385.201
2002-04-01	1517.499
2002-07-01	1588.899
2002-10-01	1681.976
2003-01-01	1658.209
2003-04-01	1771.883
2003-07-01	1826.775
2003-10-01	1996.543
2004-01-01	2076.001
2004-04-01	2091.901
2004-07-01	2124.939
2004-10-01	2312.628
2005-01-01	2288.006
2005-04-01	2232.798
2005-07-01	2259.966
2005-10-01	2250.905
2006-01-01	2295.044
2006-04-01	2488.907
2006-07-01	2607.274
2006-10-01	2789.280
2007-01-01	2832.408
2007-04-01	2940.815
2007-07-01	3081.101
2007-10-01	3106.457
2008-01-01	3154.061
2008-04-01	3180.436
2008-07-01	2872.270
2008-10-01	2262.180
2009-01-01	2212.080
2009-04-01	2688.068
2009-07-01	2582.763
2009-10-01	2608.845
2010-01-01	2669.288
2010-04-01	2622.648
2010-07-01	2719.194
2010-10-01	2617.369
2011-01-01	2689.886
2011-04-01	2672.450
2011-07-01	2592.889
2011-10-01	2557.311
2012-01-01	2637.782
2012-04-01	2570.279
2012-07-01	2666.930
2012-10-01	2643.062
2013-01-01	2468.680
2013-04-01	2466.950
2013-07-01	2618.445
2013-10-01	2692.002
2014-01-01	2695.655
2014-04-01	2772.442
2014-07-01	2650.965
2014-10-01	2555.668
2015-01-01	2434.467
2015-04-01	2589.248
2015-07-01	2512.632
2015-10-01	2488.020
2016-01-01	2434.551
2016-04-01	2301.628
2016-07-01	2253.750
2016-10-01	2155.324
2017-01-01	2215.792
2017-04-01	2333.251
2017-07-01	2388.448
2017-10-01	2421.625
2018-01-01	2515.511