Quarter	Billions of US Dollars
1953-07-01	6.852
1953-10-01	6.932
1954-01-01	7.055
1954-04-01	7.187
1954-07-01	7.309
1954-10-01	7.437
1955-01-01	7.571
1955-04-01	7.706
1955-07-01	7.843
1955-10-01	7.981
1956-01-01	8.142
1956-04-01	8.302
1956-07-01	8.468
1956-10-01	8.630
1957-01-01	8.740
1957-04-01	8.855
1957-07-01	8.930
1957-10-01	9.056
1958-01-01	9.167
1958-04-01	9.259
1958-07-01	9.357
1958-10-01	9.463
1959-01-01	9.563
1959-04-01	9.838
1959-07-01	9.975
1959-10-01	10.253
1960-01-01	10.496
1960-04-01	10.802
1960-07-01	11.093
1960-10-01	11.614
1961-01-01	11.959
1961-04-01	12.317
1961-07-01	12.495
1961-10-01	13.187
1962-01-01	13.488
1962-04-01	13.876
1962-07-01	14.114
1962-10-01	14.588
1963-01-01	14.715
1963-04-01	15.091
1963-07-01	15.409
1963-10-01	15.882
1964-01-01	16.699
1964-04-01	17.144
1964-07-01	17.343
1964-10-01	17.859
1965-01-01	18.051
1965-04-01	18.462
1965-07-01	18.873
1965-10-01	19.374
1966-01-01	19.487
1966-04-01	20.079
1966-07-01	20.387
1966-10-01	20.831
1967-01-01	21.137
1967-04-01	21.651
1967-07-01	21.904
1967-10-01	22.812
1968-01-01	23.328
1968-04-01	24.165
1968-07-01	24.544
1968-10-01	25.503
1969-01-01	26.191
1969-04-01	27.368
1969-07-01	28.616
1969-10-01	28.978
1970-01-01	29.681
1970-04-01	30.387
1970-07-01	30.790
1970-10-01	32.019
1971-01-01	32.753
1971-04-01	35.343
1971-07-01	37.000
1971-10-01	38.584
1972-01-01	39.877
1972-04-01	42.119
1972-07-01	42.242
1972-10-01	44.193
1973-01-01	51.657
1973-04-01	58.093
1973-07-01	57.582
1973-10-01	55.769
1974-01-01	61.119
1974-04-01	62.663
1974-07-01	64.602
1974-10-01	74.345
1975-01-01	74.720
1975-04-01	76.932
1975-07-01	70.645
1975-10-01	77.741
1976-01-01	80.688
1976-04-01	84.511
1976-07-01	86.110
1976-10-01	90.066
1977-01-01	86.414
1977-04-01	91.446
1977-07-01	97.425
1977-10-01	120.016
1978-01-01	127.966
1978-04-01	132.305
1978-07-01	160.416
1978-10-01	160.948
1979-01-01	152.962
1979-04-01	159.156
1979-07-01	171.891
1979-10-01	173.783
1980-01-01	153.748
1980-04-01	180.026
1980-07-01	179.709
1980-10-01	174.974
1981-01-01	163.445
1981-04-01	158.770
1981-07-01	165.562
1981-10-01	181.948
1982-01-01	165.659
1982-04-01	154.479
1982-07-01	155.879
1982-10-01	173.579
1983-01-01	167.339
1983-04-01	169.450
1983-07-01	170.213
1983-10-01	169.328
1984-01-01	171.625
1984-04-01	163.291
1984-07-01	154.237
1984-10-01	152.046
1985-01-01	154.329
1985-04-01	158.426
1985-07-01	187.031
1985-10-01	203.370
1986-01-01	219.823
1986-04-01	244.426
1986-07-01	271.366
1986-10-01	280.802
1987-01-01	307.051
1987-04-01	312.856
1987-07-01	315.568
1987-10-01	386.050
1988-01-01	373.779
1988-04-01	349.869
1988-07-01	340.961
1988-10-01	371.631
1989-01-01	351.125
1989-04-01	363.653
1989-07-01	384.253
1989-10-01	414.694
1990-01-01	438.071
1990-04-01	476.190
1990-07-01	527.512
1990-10-01	542.202
1991-01-01	479.768
1991-04-01	456.226
1991-07-01	493.078
1991-10-01	530.914
1992-01-01	484.080
1992-04-01	531.317
1992-07-01	596.336
1992-10-01	504.068
1993-01-01	493.083
1993-04-01	495.054
1993-07-01	520.405
1993-10-01	493.901
1994-01-01	524.217
1994-04-01	553.067
1994-07-01	581.391
1994-10-01	571.280
1995-01-01	659.402
1995-04-01	657.814
1995-07-01	660.960
1995-10-01	668.245
1996-01-01	657.113
1996-04-01	628.765
1996-07-01	623.214
1996-10-01	583.826
1997-01-01	547.753
1997-04-01	546.630
1997-07-01	547.431
1997-10-01	548.391
1998-01-01	526.307
1998-04-01	532.049
1998-07-01	579.422
1998-10-01	582.997
1999-01-01	553.757
1999-04-01	539.382
1999-07-01	566.539
1999-10-01	533.006
2000-01-01	523.632
2000-04-01	527.304
2000-07-01	497.866
2000-10-01	532.134
2001-01-01	512.402
2001-04-01	496.888
2001-07-01	546.702
2001-10-01	520.052
2002-01-01	521.939
2002-04-01	598.329
2002-07-01	594.667
2002-10-01	641.807
2003-01-01	661.429
2003-04-01	669.500
2003-07-01	691.721
2003-10-01	752.544
2004-01-01	734.327
2004-04-01	749.757
2004-07-01	753.695
2004-10-01	828.257
2005-01-01	800.786
2005-04-01	754.147
2005-07-01	757.066
2005-10-01	742.001
2006-01-01	758.518
2006-04-01	805.921
2006-07-01	816.363
2006-10-01	838.699
2007-01-01	860.257
2007-04-01	875.143
2007-07-01	933.176
2007-10-01	1005.940
2008-01-01	1141.771
2008-04-01	1127.614
2008-07-01	1057.161
2008-10-01	1088.898
2009-01-01	1037.872
2009-04-01	1113.635
2009-07-01	1181.488
2009-10-01	1197.679
2010-01-01	1185.440
2010-04-01	1152.490
2010-07-01	1293.311
2010-10-01	1366.493
2011-01-01	1413.679
2011-04-01	1580.675
2011-07-01	1480.870
2011-10-01	1432.793
2012-01-01	1510.118
2012-04-01	1436.508
2012-07-01	1481.225
2012-10-01	1541.939
2013-01-01	1483.047
2013-04-01	1494.405
2013-07-01	1558.031
2013-10-01	1603.627
2014-01-01	1622.254
2014-04-01	1626.399
2014-07-01	1515.148
2014-10-01	1468.139
2015-01-01	1507.978
2015-04-01	1585.545
2015-07-01	1542.159
2015-10-01	1492.160
2016-01-01	1577.233
2016-04-01	1573.929
2016-07-01	1599.737
2016-10-01	1537.952
2017-01-01	1574.375
2017-04-01	1653.477
2017-07-01	1643.070
2017-10-01	1647.019
2018-01-01	1699.265