Quarter	Billions of US Dollars
1969-01-01	23.935
1969-04-01	24.796
1969-07-01	25.546
1969-10-01	26.632
1970-01-01	26.740
1970-04-01	28.396
1970-07-01	29.517
1970-10-01	30.782
1971-01-01	31.147
1971-04-01	31.861
1971-07-01	33.627
1971-10-01	35.664
1972-01-01	36.771
1972-04-01	39.195
1972-07-01	41.137
1972-10-01	42.963
1973-01-01	44.222
1973-04-01	46.914
1973-07-01	48.954
1973-10-01	51.987
1974-01-01	55.171
1974-04-01	58.427
1974-07-01	59.830
1974-10-01	61.873
1975-01-01	62.468
1975-04-01	63.588
1975-07-01	66.916
1975-10-01	70.959
1976-01-01	74.998
1976-04-01	79.979
1976-07-01	83.099
1976-10-01	84.096
1977-01-01	83.081
1977-04-01	86.839
1977-07-01	90.233
1977-10-01	92.441
1978-01-01	91.910
1978-04-01	96.629
1978-07-01	96.025
1978-10-01	100.009
1979-01-01	104.403
1979-04-01	108.161
1979-07-01	113.611
1979-10-01	115.942
1980-01-01	115.697
1980-04-01	122.210
1980-07-01	122.645
1980-10-01	124.671
1981-01-01	126.589
1981-04-01	127.667
1981-07-01	128.787
1981-10-01	130.248
1982-01-01	125.444
1982-04-01	118.650
1982-07-01	123.506
1982-10-01	124.837
1983-01-01	125.078
1983-04-01	128.289
1983-07-01	130.590
1983-10-01	132.336
1984-01-01	130.319
1984-04-01	129.410
1984-07-01	131.258
1984-10-01	133.671
1985-01-01	130.501
1985-04-01	134.017
1985-07-01	137.414
1985-10-01	140.467
1986-01-01	142.941
1986-04-01	147.780
1986-07-01	153.914
1986-10-01	160.110
1987-01-01	172.554
1987-04-01	178.407
1987-07-01	189.056
1987-10-01	198.484
1988-01-01	215.855
1988-04-01	230.079
1988-07-01	239.613
1988-10-01	252.086
1989-01-01	258.295
1989-04-01	267.050
1989-07-01	281.206
1989-10-01	297.462
1990-01-01	302.463
1990-04-01	311.357
1990-07-01	319.117
1990-10-01	321.381
1991-01-01	323.102
1991-04-01	334.405
1991-07-01	343.587
1991-10-01	339.049
1992-01-01	331.769
1992-04-01	335.094
1992-07-01	324.606
1992-10-01	326.080
1993-01-01	329.135
1993-04-01	329.742
1993-07-01	319.988
1993-10-01	324.601
1994-01-01	313.849
1994-04-01	318.428
1994-07-01	332.305
1994-10-01	324.066
1995-01-01	325.075
1995-04-01	333.883
1995-07-01	347.933
1995-10-01	347.144
1996-01-01	350.022
1996-04-01	355.027
1996-07-01	360.088
1996-10-01	363.423
1997-01-01	367.033
1997-04-01	371.222
1997-07-01	381.214
1997-10-01	374.135
1998-01-01	383.505
1998-04-01	377.622
1998-07-01	373.684
1998-10-01	372.056
1999-01-01	385.293
1999-04-01	401.035
1999-07-01	411.175
1999-10-01	422.485
2000-01-01	429.985
2000-04-01	428.501
2000-07-01	429.446
2000-10-01	436.649
2001-01-01	417.922
2001-04-01	439.456
2001-07-01	431.884
2001-10-01	433.830
2002-01-01	440.545
2002-04-01	479.515
2002-07-01	467.244
2002-10-01	475.163
2003-01-01	513.827
2003-04-01	569.043
2003-07-01	588.462
2003-10-01	631.860
2004-01-01	630.121
2004-04-01	636.167
2004-07-01	693.186
2004-10-01	748.353
2005-01-01	759.942
2005-04-01	770.832
2005-07-01	837.125
2005-10-01	859.398
2006-01-01	876.269
2006-04-01	942.207
2006-07-01	965.915
2006-10-01	955.731
2007-01-01	982.198
2007-04-01	1112.639
2007-07-01	1214.819
2007-10-01	1261.599
2008-01-01	1230.273
2008-04-01	1285.460
2008-07-01	1273.452
2008-10-01	1105.526
2009-01-01	1083.930
2009-04-01	1208.308
2009-07-01	1324.650
2009-10-01	1380.592
2010-01-01	1439.096
2010-04-01	1420.851
2010-07-01	1469.578
2010-10-01	1541.122
2011-01-01	1584.989
2011-04-01	1626.514
2011-07-01	1527.777
2011-10-01	1583.113
2012-01-01	1630.225
2012-04-01	1614.391
2012-07-01	1708.404
2012-10-01	1697.303
2013-01-01	1671.703
2013-04-01	1646.015
2013-07-01	1699.913
2013-10-01	1658.827
2014-01-01	1604.255
2014-04-01	1683.043
2014-07-01	1634.397
2014-10-01	1590.613
2015-01-01	1449.790
2015-04-01	1527.874
2015-07-01	1432.499
2015-10-01	1400.709
2016-01-01	1511.428
2016-04-01	1541.247
2016-07-01	1537.757
2016-10-01	1522.279
2017-01-01	1544.252
2017-04-01	1617.050
2017-07-01	1706.675
2017-10-01	1711.053
2018-01-01	1670.264