Quarter	Millions of US Dollars
1963-01-01	9129
1963-04-01	9541
1963-07-01	10132
1963-10-01	10892
1964-01-01	9605
1964-04-01	10416
1964-07-01	10999
1964-10-01	9958
1965-01-01	7667
1965-04-01	7884
1965-07-01	8563
1965-10-01	9389
1966-01-01	8899
1966-04-01	9071
1966-07-01	8669
1966-10-01	38697
1967-01-01	39841
1967-04-01	39467
1967-07-01	40899
1967-10-01	35006
1968-01-01	33888
1968-04-01	31779
1968-07-01	33705
1968-10-01	32558
1969-01-01	29615
1969-04-01	28888
1969-07-01	29790
1969-10-01	32331
1970-01-01	32787
1970-04-01	31737
1970-07-01	32192
1970-10-01	32934
1971-01-01	36078
1971-04-01	37813
1971-07-01	44701
1971-10-01	50311
1972-01-01	48938
1972-04-01	41948
1972-07-01	42391
1972-10-01	41134
1973-01-01	42554
1973-04-01	47445
1973-07-01	42358
1973-10-01	41082
1974-01-01	39330
1974-04-01	41995
1974-07-01	43884
1974-10-01	41424
1975-01-01	52794
1975-04-01	49485
1975-07-01	51292
1975-10-01	54819
1976-01-01	55360
1976-04-01	52606
1976-07-01	48995
1976-10-01	53414
1977-01-01	64216
1977-04-01	64170
1977-07-01	79009
1977-10-01	89517
1978-01-01	83422
1978-04-01	82762
1978-07-01	89144
1978-10-01	94223
1979-01-01	107121
1979-04-01	113850
1979-07-01	124191
1979-10-01	121679
1980-01-01	119779
1980-04-01	146661
1980-07-01	155766
1980-10-01	161624
1981-01-01	158310
1981-04-01	134335
1981-07-01	119929
1981-10-01	131283
1982-01-01	137052
1982-04-01	135099
1982-07-01	149795
1982-10-01	149405
1983-01-01	136797
1983-04-01	148419
1983-07-01	151084
1983-10-01	149832
1984-01-01	152735
1984-04-01	140107
1984-07-01	134834
1984-10-01	129182
1985-01-01	142267
1985-04-01	151455
1985-07-01	169666
1985-10-01	176592
1986-01-01	199493
1986-04-01	203572
1986-07-01	183588
1986-10-01	198655
1987-01-01	232199
1987-04-01	233130
1987-07-01	228419
1987-10-01	274555
1988-01-01	290376
1988-04-01	247043
1988-07-01	241091
1988-10-01	256234
1989-01-01	238994
1989-04-01	204366
1989-07-01	213481
1989-10-01	209048
1990-01-01	191472
1990-04-01	214337
1990-07-01	227475
1990-10-01	234794
1991-01-01	216723
1991-04-01	218417
1991-07-01	241339
1991-10-01	250790
1992-01-01	236036
1992-04-01	282869
1992-07-01	276445
1992-10-01	261309
1993-01-01	277740
1993-04-01	309060
1993-07-01	336498
1993-10-01	363059
1994-01-01	345751
1994-04-01	349387
1994-07-01	368126
1994-10-01	373385
1995-01-01	397469
1995-04-01	417118
1995-07-01	434712
1995-10-01	444422
1996-01-01	425420
1996-04-01	456222
1996-07-01	471468
1996-10-01	511154
1997-01-01	492812
1997-04-01	529985
1997-07-01	530849
1997-10-01	550182
1998-01-01	560490
1998-04-01	560729
1998-07-01	603141
1998-10-01	603454
1999-01-01	567556
1999-04-01	550198
1999-07-01	551878
1999-10-01	547775
2000-01-01	533411
2000-04-01	513201
2000-07-01	493386
2000-10-01	495845
2001-01-01	461152
2001-04-01	443729
2001-07-01	463796
2001-10-01	452547
2002-01-01	439935
2002-04-01	487668
2002-07-01	514945
2002-10-01	537429
2003-01-01	531327
2003-04-01	571612
2003-07-01	583332
2003-10-01	641588
2004-01-01	670013
2004-04-01	687374
2004-07-01	700806
2004-10-01	798138
2005-01-01	786477
2005-04-01	796001
2005-07-01	795716
2005-10-01	801465
2006-01-01	816138
2006-04-01	877002
2006-07-01	916671
2006-10-01	963503
2007-01-01	944479
2007-04-01	973827
2007-07-01	1034359
2007-10-01	1069831
2008-01-01	1070636
2008-04-01	1091015
2008-07-01	1060138
2008-10-01	990495
2009-01-01	1017574
2009-04-01	1273395
2009-07-01	1364987
2009-10-01	1428227
2010-01-01	1422544
2010-04-01	1516175
2010-07-01	1709332
2010-10-01	1673781
2011-01-01	1741404
2011-04-01	1851071
2011-07-01	1954120
2011-10-01	2093942
2012-01-01	2157665
2012-04-01	2177887
2012-07-01	2301886
2012-10-01	2337688
2013-01-01	2252115
2013-04-01	2207116
2013-07-01	2348940
2013-10-01	2419122
2014-01-01	2501149
2014-04-01	2615716
2014-07-01	2582569
2014-10-01	2695512
2015-01-01	2595834
2015-04-01	2722817
2015-07-01	2679832
2015-10-01	2617229
2016-01-01	2633342
2016-04-01	2676948
2016-07-01	2690468
2016-10-01	2504155
2017-01-01	2545815
2017-04-01	2612321
2017-07-01	2668731
2017-10-01	2785316
2018-01-01	2853357