Quarter	Millions of US Dollars
1952-01-01	41200
1952-04-01	42650
1952-07-01	43820
1952-10-01	44830
1953-01-01	45630
1953-04-01	46570
1953-07-01	47150
1953-10-01	48410
1954-01-01	49310
1954-04-01	50210
1954-07-01	51580
1954-10-01	52080
1955-01-01	52560
1955-04-01	53160
1955-07-01	53620
1955-10-01	54930
1956-01-01	55350
1956-04-01	56240
1956-07-01	57410
1956-10-01	58420
1957-01-01	59860
1957-04-01	61300
1957-07-01	62850
1957-10-01	64490
1958-01-01	66650
1958-04-01	67810
1958-07-01	69260
1958-10-01	70370
1959-01-01	70960
1959-04-01	71630
1959-07-01	72260
1959-10-01	73110
1960-01-01	73640
1960-04-01	74650
1960-07-01	75670
1960-10-01	76990
1961-01-01	77200
1961-04-01	79260
1961-07-01	80250
1961-10-01	81710
1962-01-01	82570
1962-04-01	84070
1962-07-01	84920
1962-10-01	85840
1963-01-01	86790
1963-04-01	87680
1963-07-01	88340
1963-10-01	89380
1964-01-01	90040
1964-04-01	91250
1964-07-01	92140
1964-10-01	93530
1965-01-01	94190
1965-04-01	95670
1965-07-01	97560
1965-10-01	98060
1966-01-01	101040
1966-04-01	103650
1966-07-01	106690
1966-10-01	109100
1967-01-01	113290
1967-04-01	117480
1967-07-01	122010
1967-10-01	125170
1968-01-01	128220
1968-04-01	131660
1968-07-01	136490
1968-10-01	139270
1969-01-01	143340
1969-04-01	146660
1969-07-01	150250
1969-10-01	152360
1970-01-01	157110
1970-04-01	162690
1970-07-01	168520
1970-10-01	173890
1971-01-01	180560
1971-04-01	184500
1971-07-01	188690
1971-10-01	191900
1972-01-01	196000
1972-04-01	200570
1972-07-01	203410
1972-10-01	205350
1973-01-01	206030
1973-04-01	209770
1973-07-01	213220
1973-10-01	217720
1974-01-01	222690
1974-04-01	229230
1974-07-01	236360
1974-10-01	243170
1975-01-01	254530
1975-04-01	261260
1975-07-01	265660
1975-10-01	270080
1976-01-01	278170
1976-04-01	284520
1976-07-01	290160
1976-10-01	296830
1977-01-01	306030
1977-04-01	312710
1977-07-01	320700
1977-10-01	329680
1978-01-01	336360
1978-04-01	345610
1978-07-01	353530
1978-10-01	361150
1979-01-01	370010
1979-04-01	380510
1979-07-01	390290
1979-10-01	397460
1980-01-01	412060
1980-04-01	431390
1980-07-01	437310
1980-10-01	439490
1981-01-01	452370
1981-04-01	469950
1981-07-01	483820
1981-10-01	492380
1982-01-01	511040
1982-04-01	521370
1982-07-01	531640
1982-10-01	533080
1983-01-01	545300
1983-04-01	556970
1983-07-01	565360
1983-10-01	567650
1984-01-01	583620
1984-04-01	605220
1984-07-01	628270
1984-10-01	657990
1985-01-01	682670
1985-04-01	715220
1985-07-01	739840
1985-10-01	777480
1986-01-01	807750
1986-04-01	842880
1986-07-01	874100
1986-10-01	885350
1987-01-01	911430
1987-04-01	932270
1987-07-01	952970
1987-10-01	974110
1988-01-01	998870
1988-04-01	1034690
1988-07-01	1061890
1988-10-01	1089320
1989-01-01	1113580
1989-04-01	1148350
1989-07-01	1167000
1989-10-01	1183680
1990-01-01	1208940
1990-04-01	1228360
1990-07-01	1238700
1990-10-01	1240170
1991-01-01	1262040
1991-04-01	1286440
1991-07-01	1294170
1991-10-01	1299400
1992-01-01	1330820
1992-04-01	1352580
1992-07-01	1365250
1992-10-01	1379900
1993-01-01	1445590
1993-04-01	1503580
1993-07-01	1548850
1993-10-01	1580570
1994-01-01	1630900
1994-04-01	1661480
1994-07-01	1679350
1994-10-01	1699390
1995-01-01	1722110
1995-04-01	1761937
1995-07-01	1772882
1995-10-01	1786410
1996-01-01	1826304
1996-04-01	1861543
1996-07-01	1868511
1996-10-01	1876486
1997-01-01	1917623
1997-04-01	1964861
1997-07-01	2015518
1997-10-01	2021290
1998-01-01	2119367
1998-04-01	2203342
1998-07-01	2245881
1998-10-01	2258644
1999-01-01	2340667
1999-04-01	2411326
1999-07-01	2489904
1999-10-01	2507741
2000-01-01	2583429
2000-04-01	2652653
2000-07-01	2706573
2000-10-01	2708374
2001-01-01	2767639
2001-04-01	2841755
2001-07-01	2859901
2001-10-01	2901699
2002-01-01	2934606
2002-04-01	2947303
2002-07-01	2928107
2002-10-01	2923330
2003-01-01	2939622
2003-04-01	2958658
2003-07-01	2989523
2003-10-01	2963212
2004-01-01	3026339
2004-04-01	3011148
2004-07-01	3017943
2004-10-01	3004381
2005-01-01	3016340
2005-04-01	3000907
2005-07-01	3020605
2005-10-01	2998362
2006-01-01	3028788
2006-04-01	3079633
2006-07-01	3093146
2006-10-01	3148161
2007-01-01	3202589
2007-04-01	3304659
2007-07-01	3305811
2007-10-01	3348502
2008-01-01	3398990
2008-04-01	3493730
2008-07-01	3534407
2008-10-01	3538454
2009-01-01	3626186
2009-04-01	3679962
2009-07-01	3697287
2009-10-01	3714842
2010-01-01	3794561
2010-04-01	3822229
2010-07-01	3921016
2010-10-01	3951973
2011-01-01	4014165
2011-04-01	4061423
2011-07-01	4126007
2011-10-01	4156937
2012-01-01	4255252
2012-04-01	4320401
2012-07-01	4419751
2012-10-01	4507311
2013-01-01	4597189
2013-04-01	4651816
2013-07-01	4779579
2013-10-01	4801536
2014-01-01	4909018
2014-04-01	4977334
2014-07-01	5047425
2014-10-01	5123730
2015-01-01	5247083
2015-04-01	5400326
2015-07-01	5505424
2015-10-01	5533535
2016-01-01	5673519
2016-04-01	5762439
2016-07-01	5839601
2016-10-01	5828682
2017-01-01	5953316
2017-04-01	6015518
2017-07-01	6105371
2017-10-01	6131825
2018-01-01	6213112