Quarterly US Dollars, sum over component sub-periods
1999-01-01 -22215622951.16500000
1999-04-01 27779441456.32029700
1999-07-01 22923362361.85210000
1999-10-01 21123227723.56750000
2000-01-01 21369908254.71410000
2000-04-01 14324045189.06170000
2000-07-01 6390438019.77654100
2000-10-01 11666061942.66199900
2001-01-01 -2830454835.02458000
2001-04-01 3429610207.44015030
2001-07-01 26565364439.81419800
2001-10-01 4861635958.73964000
2002-01-01 2000643149.31691000
2002-04-01 30362404145.56099700
2002-07-01 12016845975.02100000
2002-10-01 1841181754.65767980
2003-01-01 24654391839.53110000
2003-04-01 42878106290.24090600
2003-07-01 63274186488.36390000
2003-10-01 52012697842.44170000
2004-01-01 142343396195.39800000
2004-04-01 7548866914.41601000
2004-07-01 951945331.04604100
2004-10-01 4558062746.76493000
2005-01-01 563771975.17513190
2005-04-01 3029395756.93838020
2005-07-01 -674965633.33308200
2005-10-01 -4552819241.21167900
2006-01-01 8352046741.38126900
2006-04-01 9609360304.08192000
2006-07-01 10759920832.46430000
2006-10-01 7904428754.42538100
2007-01-01 13417785295.53770000
2007-04-01 12777850611.32000000
2007-07-01 13447748267.31040000
2007-10-01 6958771845.96507000
2008-01-01 10641025412.65880000
2008-04-01 11277719741.65930000
2008-07-01 1666424216.75578000
2008-10-01 9774587710.88128900
2009-01-01 -9235064827.16203100
2009-04-01 12183695333.89470100
2009-07-01 128199710649.59900000
2009-10-01 -922641946.17372300
2010-01-01 10103747041.89270000
2010-04-01 11619717162.26380000
2010-07-01 36634789489.88600000
2010-10-01 11813608157.67249900
2011-01-01 36116940800.14160000
2011-04-01 10481483776.90460000
2011-07-01 49899458276.81100000
2011-10-01 109453771067.76399000
2012-01-01 -4202813514.22079040
2012-04-01 -7301603224.27442100
2012-07-01 2091799554.78578000
2012-10-01 -1719769098.51438000
2013-01-01 6042245981.96414000
2013-04-01 15722863726.07120000
2013-07-01 27817473463.29990000
2013-10-01 -312736575.77078503
2014-01-01 15209970117.60200100
2014-04-01 371731656.61244600
2014-07-01 -1708975804.41791000
2014-10-01 4319113818.01433900
2015-01-01 22763671492.72020000
2015-04-01 263539155.72858100
2015-07-01 14116826175.59579800
2015-10-01 8423894606.19772900
2016-01-01 4081335542.62702000
2016-04-01 3695122783.50129030
2016-07-01 5343727198.13974000
2016-10-01 1406718682.75630000
2017-01-01 11869864586.08440000
2017-04-01 11232351535.55520000
2017-07-01 9519200075.36452100
2017-10-01 -3216685686.17636000
2018-01-01 13405308202.70470000