Quarter	Millions of US Dollars
1962-10-01	5
1963-01-01	5
1963-04-01	5
1963-07-01	5
1963-10-01	5
1964-01-01	5
1964-04-01	5
1964-07-01	5
1964-10-01	5
1965-01-01	5
1965-04-01	5
1965-07-01	5
1965-10-01	5
1966-01-01	20
1966-04-01	20
1966-07-01	20
1966-10-01	20
1967-01-01	20
1967-04-01	45
1967-07-01	45
1967-10-01	45
1968-01-01	45
1968-04-01	50
1968-07-01	50
1968-10-01	50
1969-01-01	77
1969-04-01	95
1969-07-01	95
1969-10-01	95
1970-01-01	95
1970-04-01	95
1970-07-01	170
1970-10-01	170
1971-01-01	297
1971-04-01	310
1971-07-01	393
1971-10-01	472
1972-01-01	789
1972-04-01	1468
1972-07-01	1874
1972-10-01	2401
1973-01-01	2748
1973-04-01	3557
1973-07-01	3848
1973-10-01	4527
1974-01-01	5055
1974-04-01	5696
1974-07-01	5971
1974-10-01	6902
1975-01-01	8061
1975-04-01	9594
1975-07-01	10069
1975-10-01	11481
1976-01-01	12679
1976-04-01	13978
1976-07-01	15903
1976-10-01	17569
1977-01-01	19743
1977-04-01	22263
1977-07-01	24343
1977-10-01	28145
1978-01-01	33034
1978-04-01	36522
1978-07-01	40111
1978-10-01	43294
1979-01-01	45739
1979-04-01	47606
1979-07-01	50350
1979-10-01	52078
1980-01-01	50638
1980-04-01	55641
1980-07-01	56445
1980-10-01	55235
1981-01-01	53806
1981-04-01	52682
1981-07-01	54197
1981-10-01	58535
1982-01-01	59785
1982-04-01	59704
1982-07-01	60986
1982-10-01	65336
1983-01-01	66404
1983-04-01	66379
1983-07-01	67456
1983-10-01	71693
1984-01-01	76008
1984-04-01	76657
1984-07-01	79064
1984-10-01	85912
1985-01-01	87379
1985-04-01	95470
1985-07-01	102875
1985-10-01	108356
1986-01-01	116638
1986-04-01	125363
1986-07-01	135335
1986-10-01	141187
1987-01-01	150809
1987-04-01	151188
1987-07-01	150809
1987-10-01	167623
1988-01-01	167391
1988-04-01	161562
1988-07-01	160703
1988-10-01	163792
1989-01-01	158610
1989-04-01	153927
1989-07-01	157530
1989-10-01	159735
1990-01-01	193971
1990-04-01	198499
1990-07-01	207897
1990-10-01	226106
1991-01-01	227927
1991-04-01	228694
1991-07-01	237766
1991-10-01	248434
1992-01-01	246134
1992-04-01	261898
1992-07-01	273479
1992-10-01	277175
1993-01-01	304792
1993-04-01	333572
1993-07-01	386253
1993-10-01	395087
1994-01-01	421610
1994-04-01	481545
1994-07-01	516848
1994-10-01	532831
1995-01-01	575581
1995-04-01	593593
1995-07-01	593336
1995-10-01	590659
1996-01-01	598444
1996-04-01	602634
1996-07-01	617596
1996-10-01	622409
1997-01-01	621101
1997-04-01	643456
1997-07-01	647296
1997-10-01	629127
1998-01-01	635302
1998-04-01	653384
1998-07-01	677853
1998-10-01	670209
1999-01-01	653450
1999-04-01	663334
1999-07-01	672861
1999-10-01	672114
2000-01-01	680392
2000-04-01	685217
2000-07-01	698794
2000-10-01	701534
2001-01-01	705386
2001-04-01	702398
2001-07-01	722512
2001-10-01	716064
2002-01-01	747876
2002-04-01	781467
2002-07-01	782887
2002-10-01	806839
2003-01-01	851212
2003-04-01	896908
2003-07-01	918145
2003-10-01	954898
2004-01-01	972422
2004-04-01	987877
2004-07-01	1000479
2004-10-01	1058089
2005-01-01	1064209
2005-04-01	1029625
2005-07-01	1018827
2005-10-01	1027434
2006-01-01	1078923
2006-04-01	1110774
2006-07-01	1103598
2006-10-01	1132006
2007-01-01	1169900
2007-04-01	1223805
2007-07-01	1254726
2007-10-01	1242945
2008-01-01	1321972
2008-04-01	1352672
2008-07-01	1253867
2008-10-01	1247747
2009-01-01	1255341
2009-04-01	1364301
2009-07-01	1411637
2009-10-01	1413652
2010-01-01	1416217
2010-04-01	1382415
2010-07-01	1507965
2010-10-01	1514949
2011-01-01	1595827
2011-04-01	1633921
2011-07-01	1581913
2011-10-01	1557886
2012-01-01	1559867
2012-04-01	1538078
2012-07-01	1544602
2012-10-01	1607729
2013-01-01	1574933
2013-04-01	1576181
2013-07-01	1637688
2013-10-01	1659633
2014-01-01	1660178
2014-04-01	1690936
2014-07-01	1638587
2014-10-01	1618277
2015-01-01	1539767
2015-04-01	1562434
2015-07-01	1567610
2015-10-01	1529126
2016-01-01	1562320
2016-04-01	1590309
2016-07-01	1581964
2016-10-01	1617014
2017-01-01	1657154
2017-04-01	1751830
2017-07-01	1803846
2017-10-01	1847709
2018-01-01	1917839
2018-04-01	1912304