Quarterly US Dollars, sum over component sub-periods
1981-01-01 -1675679.8291434401
1981-04-01 -834222.7839030510
1981-07-01 -825162.4282017420
1981-10-01 -839331.3782588220
1982-01-01 -827101.9521935000
1982-04-01 -803611.9901327819
1982-07-01 -800517.9222399370
1982-10-01 -812245.0276812200
1983-01-01 -814856.6046538070
1983-04-01 -812329.6448062661
1983-07-01 -811136.1582352700
1983-10-01 -807413.9611176089
1984-01-01 0.0000000000
1984-04-01 0.0000000000
1984-07-01 0.0000000000
1984-10-01 0.0000000000
1985-01-01 0.0000000000
1985-04-01 0.0000000000
1985-07-01 0.0000000000
1985-10-01 0.0000000000
1986-01-01 -4990024.6747815500
1986-04-01 0.0000000000
1986-07-01 0.0000000000
1986-10-01 0.0000000000
1987-01-01 -747481.5085490050
1987-04-01 -749949.2063638350
1987-07-01 -12856357.1074629000
1987-10-01 -12963386.4460152000
1988-01-01 -16569096.8708278000
1988-04-01 -13006195.2760585000
1988-07-01 -99231778.0956110000
1988-10-01 -13247383.0301903000
1989-01-01 -23489863.6781671000
1989-04-01 -9218959.4425101900
1989-07-01 -127700865.8788510100
1989-10-01 -23957542.4863098000
1990-01-01 -568011000.2934680000
1990-04-01 -854427.3849629160
1990-07-01 -867014.9199692780
1990-10-01 -861011.7687431640
1991-01-01 -865053.6067751630
1991-04-01 -870130.0616585100
1991-07-01 -874172.0785788229
1991-10-01 -112735373.4675280000
1992-01-01 -54346449.6959593000
1992-04-01 -837174.2954269700
1992-07-01 -44950244.5647698000
1992-10-01 -3961779.8598949600
1993-01-01 -224281801.7431330000
1993-04-01 -3935952.7528311200
1993-07-01 -29905960.0396874000
1993-10-01 -3019889.2810662203
1994-01-01 -33538129.3163982970
1994-04-01 -2893869.9570567403
1994-07-01 -3646251.4889845200
1994-10-01 -2923179.5383899900
1995-01-01 -78909558.0948457100
1995-04-01 -178653502.5287010000
1995-07-01 -737646.7396555970
1995-10-01 -174745804.3828420000
1996-01-01 -40893302.9645719000
1996-04-01 -12456619.7183320000
1996-07-01 -43057448.6438749000
1996-10-01 -22950633.2231913000
1997-01-01 -46345365.0574589000
1997-04-01 -8655198.9790278900
1997-07-01 -41873546.5757333040
1997-10-01 -2129061.2523975600
1998-01-01 -53112909.9436473000
1998-04-01 -2073181.9367831901
1998-07-01 -41610197.5319250000
1998-10-01 -33723379.1443546040
1999-01-01 -58232380.3267069000
1999-04-01 -3394398.2475931700
1999-07-01 -45099275.0092445000
1999-10-01 -2037578.1289405199
2000-01-01 -58500713.8475016000
2000-04-01 -2027124.5240445102
2000-07-01 -31042794.9462435000
2000-10-01 -24251220.9636590000
2001-01-01 12433752.0955968000
2001-04-01 -42174266.3269423000
2001-07-01 -42071498.2693476000
2001-10-01 -31026331.2201132000
2002-01-01 -21959405.5262016000
2002-04-01 -28314353.3859521000
2002-07-01 -55025919.0832937000
2002-10-01 -1911540.8883161200
2003-01-01 -54339007.2262793000
2003-04-01 -128101393.9771619900
2003-07-01 -67418272.6397476000
2003-10-01 -2280314.6702514100
2004-01-01 -68308848.2807966000
2004-04-01 -1471823.2140691602
2004-07-01 -77243900.4715239000
2004-10-01 -1638772.6931041300
2005-01-01 -81564494.1610043000
2005-04-01 -1608208.1006672600
2005-07-01 -106365681.6721680000
2005-10-01 -851942.0415829620
2006-01-01 -98747840.3995625100
2006-04-01 -1781915.9714941700
2006-07-01 -17837356.4030688000
2006-10-01 -88659778.8172854000
2007-01-01 -55480244.1172110000
2007-04-01 -92841919.0741994000
2007-07-01 -15306384.3834253000
2007-10-01 -104917731.8331639900
2008-01-01 -112445762.7433800000
2008-04-01 -8905311.9159661010
2008-07-01 -122785853.5481360100
2008-10-01 -1649882.8941815400
2009-01-01 -229636712.6767349800
2009-04-01 -1713736.9369289200
2009-07-01 -2734275.3222603200
2009-10-01 -500078451.1517319700
2010-01-01 -67257943.7629297000
2010-04-01 -1945661.8479014600
2010-07-01 -50046663.5557628000
2010-10-01 -1973939.4541535400
2011-01-01 -55774280.9705250000
2011-04-01 -2066445.3115099200
2011-07-01 4727688607.2418500000
2011-10-01 -1955453.4719175200
2012-01-01 -136872903.7322490000
2012-04-01 -1979912.5641097499
2012-07-01 -4020465.7065928700
2012-10-01 -130175338.9985750000
2013-01-01 -95178990.8853854100
2013-04-01 -1954088.5761141000
2013-07-01 -3851132.7935020500
2013-10-01 -1905256.9759275100
2014-01-01 379775785.7821139700
2014-04-01 -1834630.8007375900
2014-07-01 -3673473.8431316400
2014-10-01 -12318868.1638172000
2015-01-01 -81433214.8076514900
2015-04-01 -1627074.5200130201
2015-07-01 -1528483.3028914100
2015-10-01 -1497983.5514564200
2016-01-01 -37126284.2276065950
2016-04-01 0.0000000000
2016-07-01 -30664810.9219884000
2016-10-01 0.0000000000
2017-01-01 -38540175.9156070000
2017-04-01 0.0000000000
2017-07-01 -19948613.2533575000
2017-10-01 0.0000000000
2018-01-01 -40320007.2596638000
2018-04-01 0.0000000000