Quarter	US Dollars, sum over component sub-periods
1980-01-01	814100000.0000000
1980-04-01	898200000.0000000
1980-07-01	944800000.0000000
1980-10-01	1082800000.0000000
1981-01-01	893300000.0000000
1981-04-01	1080300000.0000000
1981-07-01	1080000000.0000000
1981-10-01	1056400000.0000001
1982-01-01	927100000.0000000
1982-04-01	1004600000.0000000
1982-07-01	1086300000.0000000
1982-10-01	972000000.0000000
1983-01-01	886200000.0000000
1983-04-01	1080500000.0000000
1983-07-01	887200000.0000000
1983-10-01	1137600000.0000000
1984-01-01	949400000.0000000
1984-04-01	956800000.0000000
1984-07-01	1018600000.0000000
1984-10-01	1112700000.0000000
1985-01-01	879400000.0000000
1985-04-01	883300000.0000000
1985-07-01	898300000.0000000
1985-10-01	957500000.0000000
1986-01-01	937000000.0000000
1986-04-01	1010500000.0000000
1986-07-01	1018300000.0000000
1986-10-01	1128300000.0000000
1987-01-01	1106000000.0000000
1987-04-01	1115700000.0000000
1987-07-01	1189500000.0000000
1987-10-01	1381000000.0000000
1988-01-01	1365700000.0000000
1988-04-01	1483900000.0000000
1988-07-01	1641700000.0000000
1988-10-01	1723500000.0000000
1989-01-01	1813800000.0000000
1989-04-01	2066300000.0000002
1989-07-01	2248000000.0000000
1989-10-01	2450800000.0000000
1990-01-01	2409500000.0000000
1990-04-01	2500700000.0000000
1990-07-01	2568500000.0000000
1990-10-01	2866800000.0000000
1991-01-01	2705400000.0000000
1991-04-01	2927600000.0000000
1991-07-01	3287400000.0000000
1991-10-01	3353700000.0000000
1992-01-01	3254400000.0000000
1992-04-01	3350600000.0000000
1992-07-01	3493000000.0000000
1992-10-01	3583300000.0000000
1993-01-01	3495000000.0000000
1993-04-01	3603300000.0000000
1993-07-01	3877000000.0000000
1993-10-01	4216600000.0000005
1994-01-01	4177800000.0000000
1994-04-01	4424700000.0000000
1994-07-01	4919700000.0000000
1994-10-01	5206800000.0000000
1995-01-01	5955300000.0000000
1995-04-01	6324800000.0000000
1995-07-01	6917500000.0000000
1995-10-01	6790500000.0000000
1996-01-01	7163400000.0000000
1996-04-01	7297400000.0000000
1996-07-01	7502000000.0000000
1996-10-01	7849100000.0000000
1997-01-01	7492600000.0000000
1997-04-01	7665900000.0000000
1997-07-01	8127000000.0000000
1997-10-01	6426700000.0000000
1998-01-01	5405700000.0000000
1998-04-01	6023100000.0000000
1998-07-01	6464800000.0000000
1998-10-01	6844400000.0000000
1999-01-01	6327100000.0000000
1999-04-01	6665200000.0000000
1999-07-01	6630800000.0000000
1999-10-01	7760700000.0000000
2000-01-01	7807900000.0000000
2000-04-01	8311200000.0000010
2000-07-01	8799500000.0000000
2000-10-01	8721200000.0000000
2001-01-01	7743000000.0000000
2001-04-01	8194100000.0000000
2001-07-01	8769800000.0000000
2001-10-01	8548600000.0000000
2002-01-01	8502600000.0000000
2002-04-01	8790400000.0000000
2002-07-01	10088900000.0000000
2002-10-01	9685300000.0000000
2003-01-01	9807700000.0000000
2003-04-01	9373500000.0000000
2003-07-01	10925300000.0000000
2003-10-01	10755500000.0000000
2004-01-01	11513300000.0000000
2004-04-01	11428300000.0000000
2004-07-01	13083300000.0000000
2004-10-01	14603400000.0000000
2005-01-01	14452800000.0000000
2005-04-01	14543100000.0000000
2005-07-01	15597700000.0000000
2005-10-01	15267000000.0000000
2006-01-01	17088599999.9999980
2006-04-01	16568800000.0000000
2006-07-01	18244300000.0000000
2006-10-01	18524400000.0000000
2007-01-01	20147300000.0000000
2007-04-01	20088500000.0000000
2007-07-01	21534100000.0000000
2007-10-01	23127600000.0000000
2008-01-01	24346500000.0000000
2008-04-01	25170600000.0000000
2008-07-01	26811500000.0000000
2008-10-01	21547600000.0000000
2009-01-01	18218400000.0000000
2009-04-01	19059400000.0000000
2009-07-01	21094100000.0000000
2009-10-01	23970100000.0000000
2010-01-01	23366900000.0000000
2010-04-01	22857400000.0000000
2010-07-01	23956600000.0000000
2010-10-01	27317800000.0000000
2011-01-01	24888900000.0000000
2011-04-01	25239000000.0000000
2011-07-01	26135300000.0000000
2011-10-01	26916000000.0000000
2012-01-01	26981900000.0000000
2012-04-01	25696800000.0000000
2012-07-01	27239100000.0000000
2012-10-01	28829000000.0000000
2013-01-01	27842800000.0000000
2013-04-01	25666900000.0000000
2013-07-01	27121100000.0000000
2013-10-01	29607600000.0000000
2014-01-01	28750400000.0000000
2014-04-01	28601000000.0000000
2014-07-01	29112600000.0000000
2014-10-01	29320400000.0000000
2015-01-01	29155900000.0000000
2015-04-01	27545000000.0000000
2015-07-01	27621600000.0000000
2015-10-01	28324900000.0000000
2016-01-01	27650500000.0000000
2016-04-01	27469500000.0000000
2016-07-01	29275400000.0000000
2016-10-01	28245400000.0000000
2017-01-01	29674700000.0000000
2017-04-01	27798800000.0000000
2017-07-01	31260700000.0000000
2017-10-01	33234600000.0000000
2018-01-01	32827500000.0000000
2018-04-01	30804600000.0000000
2018-07-01	32035600000.0000000