Quarter	US Dollars, sum over component sub-periods
1960-01-01	835343077.8331350
1960-04-01	895176932.6094489
1960-07-01	1059495238.4825499
1960-10-01	851701979.3023490
1961-01-01	876867918.9343000
1961-04-01	944359387.9402080
1961-07-01	1100569519.9899000
1961-10-01	863641484.0223320
1962-01-01	891836803.9174160
1962-04-01	989659074.8192370
1962-07-01	1124389899.3103700
1962-10-01	891152536.7308689
1963-01-01	882923667.6519741
1963-04-01	1010980489.6747700
1963-07-01	1226355968.9160500
1963-10-01	956836195.9393800
1964-01-01	990550992.3115070
1964-04-01	1110765705.3586600
1964-07-01	1318391795.0257201
1964-10-01	1017156315.1890100
1965-01-01	1022249883.1736801
1965-04-01	1185192451.4944500
1965-07-01	1416016191.4054298
1965-10-01	1085018995.0764600
1966-01-01	1095162793.8470900
1966-04-01	1234093123.6441900
1966-07-01	1497710900.8908400
1966-10-01	1094032767.5832500
1967-01-01	1081174215.5414600
1967-04-01	1249720863.0566600
1967-07-01	1568254852.3130000
1967-10-01	1285396519.9349600
1968-01-01	1157346261.0059500
1968-04-01	1217499879.2257800
1968-07-01	1450466428.1072300
1968-10-01	1184017021.0713400
1969-01-01	1250021261.9146600
1969-04-01	1345512111.2716198
1969-07-01	1582357897.9957300
1969-10-01	1343424422.3766701
1970-01-01	1348474471.5514600
1970-04-01	1576167690.9796000
1970-07-01	1972513870.9399200
1970-10-01	1765839826.1736900
1971-01-01	1704319809.3830200
1971-04-01	1898627145.0369298
1971-07-01	2174257860.6398800
1971-10-01	1864907051.0724400
1972-01-01	1951729459.6997400
1972-04-01	2053390047.3310600
1972-07-01	2359097503.0081000
1972-10-01	2011865419.5858600
1973-01-01	2122380487.7975800
1973-04-01	2530349306.9674100
1973-07-01	3013604847.7875004
1973-10-01	2638896024.1247200
1974-01-01	2676922215.8372498
1974-04-01	3143050214.0422200
1974-07-01	3451115553.8306500
1974-10-01	3042892232.6750097
1975-01-01	3092712581.0352700
1975-04-01	3396895168.4251103
1975-07-01	3678959297.6230100
1975-10-01	3125595000.7076797
1976-01-01	2827792356.0587900
1976-04-01	3213752321.3060400
1976-07-01	3723646513.0043197
1976-10-01	3184411437.1064500
1977-01-01	2993563135.6327900
1977-04-01	3403753231.3388800
1977-07-01	4075839748.8968400
1977-10-01	3588354619.6499800
1978-01-01	3553047812.2598200
1978-04-01	3960803510.7655100
1978-07-01	4790294106.1717410
1978-10-01	3992192103.8128500
1979-01-01	4256376338.1430497
1979-04-01	5279930075.9577000
1979-07-01	6633045668.3670400
1979-10-01	5473990940.0383100
1980-01-01	5704274494.3662500
1980-04-01	6763988272.1217600
1980-07-01	8169034176.9697090
1980-10-01	6215190141.2838790
1981-01-01	5664959458.8356500
1981-04-01	6609385388.1570100
1981-07-01	7116881553.1412400
1981-10-01	6095381689.5243900
1982-01-01	5257591581.6990800
1982-04-01	6538489852.4091010
1982-07-01	7485277491.9709100
1982-10-01	5517904706.0493800
1983-01-01	4857324845.0917900
1983-04-01	5895665683.8746100
1983-07-01	7092639611.6989000
1983-10-01	5270371584.5089400
1984-01-01	5042995558.2710200
1984-04-01	5928225455.3960400
1984-07-01	6689669159.5857200
1984-10-01	5042936457.9704895
1985-01-01	4451077148.9852400
1985-04-01	5437976583.2033100
1985-07-01	7038402494.7376700
1985-10-01	5855656513.6040000
1986-01-01	5659516678.7168100
1986-04-01	7001267759.5123200
1986-07-01	8739736065.4753700
1986-10-01	6330452197.6093900
1987-01-01	6597044246.4386200
1987-04-01	8532791555.4283210
1987-07-01	10950865477.9784000
1987-10-01	8693052039.7349590
1988-01-01	8891011928.5687200
1988-04-01	10565907768.1563990
1988-07-01	12218500404.9420000
1988-10-01	9972990682.4222100
1989-01-01	9815767559.4189500
1989-04-01	10469424347.4827000
1989-07-01	13281432242.5418000
1989-10-01	9817393101.4116900
1990-01-01	10133376231.4146000
1990-04-01	12102928367.5609000
1990-07-01	16214749442.2331000
1990-10-01	12836254911.1885000
1991-01-01	11571738917.6467000
1991-04-01	12834647314.0009000
1991-07-01	15101965894.4147000
1991-10-01	12361680555.1360000
1992-01-01	12214130999.4926000
1992-04-01	15010862278.0494000
1992-07-01	18322918084.5462000
1992-10-01	12001617896.5269990
1993-01-01	11283777765.3694000
1993-04-01	14247327864.8078000
1993-07-01	16778896068.5540000
1993-10-01	12980870865.5854020
1994-01-01	13143509266.7580000
1994-04-01	15596986779.2249010
1994-07-01	19041180732.8918000
1994-10-01	15555637289.4931000
1995-01-01	14523692423.3164000
1995-04-01	17779037221.9316980
1995-07-01	20622002744.1960000
1995-10-01	16230471584.1633010
1996-01-01	16345948680.8325000
1996-04-01	18658036101.3479000
1996-07-01	21646271252.8824000
1996-10-01	19487608492.7604000
1997-01-01	18142907390.7016000
1997-04-01	20723370460.2314000
1997-07-01	23409055077.5612000
1997-10-01	20688433071.0955000
1998-01-01	19574742374.1452980
1998-04-01	23011052467.7110980
1998-07-01	26556371107.3573000
1998-10-01	23564010364.3318000
1999-01-01	22155969097.7030000
1999-04-01	25457590373.0949000
1999-07-01	28673454477.9698000
1999-10-01	25425915734.8611000
2000-01-01	23326730720.3648030
2000-04-01	26291263636.1798000
2000-07-01	29704202394.4232000
2000-10-01	24621046688.8750000
2001-01-01	23899344528.1234000
2001-04-01	26119958997.9246980
2001-07-01	30448110428.7218970
2001-10-01	24073297413.1816020
2002-01-01	24063000110.7833980
2002-04-01	28211692217.2472000
2002-07-01	35382707295.6934000
2002-10-01	28938793187.5324000
2003-01-01	30016978631.2387000
2003-04-01	33945916172.4095040
2003-07-01	40083630887.3812000
2003-10-01	33587891567.3809970
2004-01-01	35443252700.6816000
2004-04-01	39009580074.2255000
2004-07-01	46568487719.5781000
2004-10-01	40670714410.2828000
2005-01-01	40512516195.4408000
2005-04-01	43754361705.8930050
2005-07-01	48988128636.8439000
2005-10-01	40747340235.0425000
2006-01-01	41611805283.1231000
2006-04-01	46904730330.3855000
2006-07-01	55257116686.4438000
2006-10-01	46961914632.2706000
2007-01-01	46835644252.8676000
2007-04-01	52233984595.7892000
2007-07-01	61804407790.8739000
2007-10-01	53987422763.3170000
2008-01-01	52575730620.2003000
2008-04-01	57036962393.9680000
2008-07-01	63267752310.4592000
2008-10-01	44450324584.4854050
2009-01-01	39809769676.5824000
2009-04-01	45675037809.9958950
2009-07-01	54008034567.8799000
2009-10-01	44886566195.2323000
2010-01-01	42399117927.6319050
2010-04-01	44725024722.6702960
2010-07-01	52637304847.9869000
2010-10-01	44871514706.8206000
2011-01-01	44000536614.3976000
2011-04-01	49823300251.2045000
2011-07-01	54813667625.5804000
2011-10-01	45383213218.2525940
2012-01-01	44925009096.2983000
2012-04-01	50697603143.4184950
2012-07-01	55124279591.0307000
2012-10-01	46083410975.3718000
2013-01-01	46238259507.1242100
2013-04-01	52017664607.9697950
2013-07-01	59589077657.4898000
2013-10-01	50264322310.5639950
2014-01-01	52885853063.7989960
2014-04-01	56337296299.9801940
2014-07-01	63792757689.9932000
2014-10-01	49260593440.1999000
2015-01-01	48297614651.7439960
2015-04-01	54207095149.1392000
2015-07-01	63573735325.7456000
2015-10-01	51130221131.2029950
2016-01-01	48184369533.8104000
2016-04-01	54175590985.6170000
2016-07-01	59971742980.7448000
2016-10-01	48378822940.7751000
2017-01-01	46133300834.7836000
2017-04-01	52031779706.3706050
2017-07-01	62287015468.3697000
2017-10-01	52068183995.2790100
2018-01-01	54311839343.6562000
2018-04-01	58560781231.3997000