Quarter	Billions of US Dollars
1964-10-01	79.455
1965-01-01	82.130
1965-04-01	84.186
1965-07-01	88.232
1965-10-01	93.226
1966-01-01	95.727
1966-04-01	97.593
1966-07-01	101.956
1966-10-01	107.081
1967-01-01	110.917
1967-04-01	113.868
1967-07-01	119.463
1967-10-01	125.390
1968-01-01	129.193
1968-04-01	133.130
1968-07-01	138.627
1968-10-01	145.784
1969-01-01	150.807
1969-04-01	155.498
1969-07-01	163.177
1969-10-01	172.135
1970-01-01	176.309
1970-04-01	182.010
1970-07-01	190.970
1970-10-01	201.938
1971-01-01	210.042
1971-04-01	219.755
1971-07-01	247.282
1971-10-01	280.180
1972-01-01	300.621
1972-04-01	314.123
1972-07-01	331.686
1972-10-01	354.057
1973-01-01	417.343
1973-04-01	436.935
1973-07-01	450.512
1973-10-01	445.714
1974-01-01	464.120
1974-04-01	462.150
1974-07-01	453.319
1974-10-01	467.567
1975-01-01	491.596
1975-04-01	504.851
1975-07-01	507.791
1975-10-01	525.896
1976-01-01	546.981
1976-04-01	561.406
1976-07-01	601.150
1976-10-01	609.236
1977-01-01	656.028
1977-04-01	690.182
1977-07-01	713.781
1977-10-01	811.063
1978-01-01	881.876
1978-04-01	966.984
1978-07-01	1059.089
1978-10-01	1070.577
1979-01-01	990.003
1979-04-01	964.559
1979-07-01	964.581
1979-10-01	928.780
1980-01-01	906.867
1980-04-01	1056.884
1980-07-01	1111.663
1980-10-01	1190.910
1981-01-01	1169.375
1981-04-01	1100.335
1981-07-01	1099.172
1981-10-01	1206.613
1982-01-01	1091.418
1982-04-01	1069.644
1982-07-01	1048.250
1982-10-01	1235.784
1983-01-01	1239.345
1983-04-01	1245.084
1983-07-01	1296.462
1983-10-01	1358.242
1984-01-01	1428.912
1984-04-01	1362.181
1984-07-01	1364.985
1984-10-01	1361.313
1985-01-01	1402.953
1985-04-01	1420.626
1985-07-01	1674.016
1985-10-01	1864.115
1986-01-01	2115.785
1986-04-01	2343.780
1986-07-01	2550.642
1986-10-01	2563.245
1987-01-01	2835.982
1987-04-01	2982.271
1987-07-01	3080.886
1987-10-01	3812.291
1988-01-01	3798.096
1988-04-01	3593.922
1988-07-01	3671.481
1988-10-01	4108.678
1989-01-01	3940.989
1989-04-01	3728.082
1989-07-01	3990.142
1989-10-01	4016.098
1990-01-01	3796.407
1990-04-01	3975.564
1990-07-01	4512.197
1990-10-01	4733.050
1991-01-01	4622.485
1991-04-01	4753.290
1991-07-01	5021.102
1991-10-01	5458.900
1992-01-01	5141.865
1992-04-01	5478.279
1992-07-01	5843.402
1992-10-01	5706.487
1993-01-01	6208.477
1993-04-01	6791.828
1993-07-01	6847.888
1993-10-01	6537.423
1994-01-01	7059.888
1994-04-01	7289.822
1994-07-01	7409.245
1994-10-01	7415.115
1995-01-01	8440.109
1995-04-01	8603.869
1995-07-01	7440.144
1995-10-01	7197.188
1996-01-01	6953.753
1996-04-01	6712.773
1996-07-01	6578.065
1996-10-01	6394.624
1997-01-01	5936.425
1997-04-01	6383.168
1997-07-01	6015.027
1997-10-01	5721.221
1998-01-01	5502.253
1998-04-01	5195.987
1998-07-01	5341.643
1998-10-01	6105.300
1999-01-01	5675.090
1999-04-01	5476.359
1999-07-01	6200.853
1999-10-01	6473.436
2000-01-01	6297.369
2000-04-01	6036.727
2000-07-01	5846.706
2000-10-01	5488.306
2001-01-01	4988.302
2001-04-01	4935.237
2001-07-01	5095.209
2001-10-01	4645.514
2002-01-01	4527.110
2002-04-01	4995.489
2002-07-01	4781.757
2002-10-01	4936.986
2003-01-01	4827.433
2003-04-01	4650.861
2003-07-01	4943.148
2003-10-01	5124.019
2004-01-01	5164.893
2004-04-01	4839.087
2004-07-01	4716.974
2004-10-01	5124.442
2005-01-01	5145.972
2005-04-01	4840.438
2005-07-01	4795.799
2005-10-01	4628.442
2006-01-01	4632.569
2006-04-01	4728.407
2006-07-01	4621.523
2006-10-01	4618.903
2007-01-01	4660.549
2007-04-01	4343.173
2007-07-01	4697.526
2007-10-01	4866.390
2008-01-01	5457.174
2008-04-01	5146.218
2008-07-01	5143.634
2008-10-01	6098.959
2009-01-01	5497.576
2009-04-01	5596.930
2009-07-01	5985.134
2009-10-01	5782.786
2010-01-01	5698.591
2010-04-01	5929.712
2010-07-01	6259.582
2010-10-01	6332.017
2011-01-01	6140.877
2011-04-01	6326.556
2011-07-01	6661.600
2011-10-01	6610.717
2012-01-01	6266.212
2012-04-01	6314.046
2012-07-01	6549.899
2012-10-01	5928.495
2013-01-01	5376.611
2013-04-01	5099.008
2013-07-01	5217.303
2013-10-01	4882.645
2014-01-01	4941.142
2014-04-01	5003.868
2014-07-01	4649.408
2014-10-01	4307.950
2015-01-01	4286.002
2015-04-01	4144.295
2015-07-01	4242.129
2015-10-01	4286.761
2016-01-01	4614.955
2016-04-01	5056.236
2016-07-01	5176.511
2016-10-01	4552.294
2017-01-01	4795.326
2017-04-01	4780.899
2017-07-01	4801.850
2017-10-01	4849.707
2018-01-01	5095.835