Quarter	Billions of US Dollars
1964-10-01	17.604
1965-01-01	18.013
1965-04-01	18.232
1965-07-01	19.406
1965-10-01	20.908
1966-01-01	21.573
1966-04-01	22.437
1966-07-01	24.112
1966-10-01	25.576
1967-01-01	26.666
1967-04-01	27.924
1967-07-01	29.155
1967-10-01	31.258
1968-01-01	32.277
1968-04-01	33.512
1968-07-01	35.880
1968-10-01	38.353
1969-01-01	39.662
1969-04-01	41.685
1969-07-01	44.196
1969-10-01	47.363
1970-01-01	49.086
1970-04-01	50.761
1970-07-01	53.615
1970-10-01	56.982
1971-01-01	59.230
1971-04-01	61.834
1971-07-01	69.263
1971-10-01	79.183
1972-01-01	84.561
1972-04-01	89.231
1972-07-01	95.359
1972-10-01	104.005
1973-01-01	125.655
1973-04-01	134.368
1973-07-01	143.070
1973-10-01	147.411
1974-01-01	155.048
1974-04-01	156.671
1974-07-01	155.376
1974-10-01	162.207
1975-01-01	169.917
1975-04-01	175.506
1975-07-01	177.818
1975-10-01	187.429
1976-01-01	197.199
1976-04-01	204.716
1976-07-01	222.372
1976-10-01	229.744
1977-01-01	247.701
1977-04-01	263.675
1977-07-01	279.500
1977-10-01	320.920
1978-01-01	352.684
1978-04-01	393.341
1978-07-01	452.754
1978-10-01	465.024
1979-01-01	437.446
1979-04-01	435.600
1979-07-01	440.548
1979-10-01	434.436
1980-01-01	426.153
1980-04-01	499.441
1980-07-01	532.333
1980-10-01	576.389
1981-01-01	567.096
1981-04-01	534.370
1981-07-01	535.336
1981-10-01	586.258
1982-01-01	529.650
1982-04-01	516.439
1982-07-01	505.723
1982-10-01	597.940
1983-01-01	603.958
1983-04-01	610.962
1983-07-01	639.356
1983-10-01	669.429
1984-01-01	701.900
1984-04-01	671.808
1984-07-01	666.381
1984-10-01	667.263
1985-01-01	674.578
1985-04-01	681.405
1985-07-01	799.264
1985-10-01	883.413
1986-01-01	1010.829
1986-04-01	1114.776
1986-07-01	1219.174
1986-10-01	1198.968
1987-01-01	1355.863
1987-04-01	1371.651
1987-07-01	1448.860
1987-10-01	1829.419
1988-01-01	1823.714
1988-04-01	1736.512
1988-07-01	1788.887
1988-10-01	1984.982
1989-01-01	1937.353
1989-04-01	1813.486
1989-07-01	1956.687
1989-10-01	1986.295
1990-01-01	1884.992
1990-04-01	1981.149
1990-07-01	2245.176
1990-10-01	2324.115
1991-01-01	2264.507
1991-04-01	2337.059
1991-07-01	2446.104
1991-10-01	2650.578
1992-01-01	2495.646
1992-04-01	2648.054
1992-07-01	2799.615
1992-10-01	2722.963
1993-01-01	2970.436
1993-04-01	3220.851
1993-07-01	3267.099
1993-10-01	3098.938
1994-01-01	3380.593
1994-04-01	3520.722
1994-07-01	3583.430
1994-10-01	3560.049
1995-01-01	4087.386
1995-04-01	4206.401
1995-07-01	3655.128
1995-10-01	3545.702
1996-01-01	3439.634
1996-04-01	3349.805
1996-07-01	3320.363
1996-10-01	3200.085
1997-01-01	3003.832
1997-04-01	3253.357
1997-07-01	3090.324
1997-10-01	2896.415
1998-01-01	2802.462
1998-04-01	2694.601
1998-07-01	2752.960
1998-10-01	3287.939
1999-01-01	3120.691
1999-04-01	3073.424
1999-07-01	3533.953
1999-10-01	3672.082
2000-01-01	3652.630
2000-04-01	3548.780
2000-07-01	3460.201
2000-10-01	3254.069
2001-01-01	2940.384
2001-04-01	2947.609
2001-07-01	3072.576
2001-10-01	2783.911
2002-01-01	2728.167
2002-04-01	3018.954
2002-07-01	2928.287
2002-10-01	2981.672
2003-01-01	2968.687
2003-04-01	2904.137
2003-07-01	3162.099
2003-10-01	3260.743
2004-01-01	3344.854
2004-04-01	3165.026
2004-07-01	3113.756
2004-10-01	3342.477
2005-01-01	3006.190
2005-04-01	2872.367
2005-07-01	2799.866
2005-10-01	2703.272
2006-01-01	2685.962
2006-04-01	2735.367
2006-07-01	2649.574
2006-10-01	2608.013
2007-01-01	2622.595
2007-04-01	2518.012
2007-07-01	2687.551
2007-10-01	2786.629
2008-01-01	3116.167
2008-04-01	2932.415
2008-07-01	2949.554
2008-10-01	3435.212
2009-01-01	3167.983
2009-04-01	3240.516
2009-07-01	3444.729
2009-10-01	3311.391
2010-01-01	3243.186
2010-04-01	3415.497
2010-07-01	3648.538
2010-10-01	3757.416
2011-01-01	3692.180
2011-04-01	3718.682
2011-07-01	3858.236
2011-10-01	3804.433
2012-01-01	3545.498
2012-04-01	3656.292
2012-07-01	3725.100
2012-10-01	3378.937
2013-01-01	3101.463
2013-04-01	2959.707
2013-07-01	3010.253
2013-10-01	2807.967
2014-01-01	2863.307
2014-04-01	2905.344
2014-07-01	2691.757
2014-10-01	2485.601
2015-01-01	2487.878
2015-04-01	2433.529
2015-07-01	2494.458
2015-10-01	2501.318
2016-01-01	2685.140
2016-04-01	2938.647
2016-07-01	2998.790
2016-10-01	2613.716
2017-01-01	2743.151
2017-04-01	2749.399
2017-07-01	2745.326
2017-10-01	2769.744
2018-01-01	2960.167