Quarter	US Dollars, sum over component sub-periods
2005-01-01	-83513190089.441800
2005-04-01	-50051431807.060000
2005-07-01	-57964072554.284195
2005-10-01	-56102903574.599800
2006-01-01	-71329099896.120900
2006-04-01	-46230791352.802600
2006-07-01	-61870116148.576096
2006-10-01	-60617617814.699200
2007-01-01	-91832747797.821000
2007-04-01	-51852255324.221306
2007-07-01	-64832639633.589195
2007-10-01	-78020440377.379100
2008-01-01	-107862594854.885000
2008-04-01	-63300772482.694700
2008-07-01	-69120521949.949000
2008-10-01	-77834925383.093000
2009-01-01	-90392589676.102200
2009-04-01	-66933453444.819790
2009-07-01	-75390756768.679000
2009-10-01	-89369200885.725300
2010-01-01	-110361909188.748000
2010-04-01	-59567000594.038700
2010-07-01	-79796031596.337800
2010-10-01	-84179553531.854000
2011-01-01	-113284881138.593000
2011-04-01	-64555054533.379600
2011-07-01	-77264389933.221700
2011-10-01	-87850752201.664800
2012-01-01	-114903815702.622000
2012-04-01	-68298200620.615200
2012-07-01	-72482936432.480200
2012-10-01	-78305601254.318510
2013-01-01	-114749553938.888000
2013-04-01	-76643727998.987000
2013-07-01	-82660282086.874000
2013-10-01	-78957617615.241400
2014-01-01	-116882266438.879000
2014-04-01	-78118304539.991000
2014-07-01	-76080647955.936900
2014-10-01	-89021348712.253400
2015-01-01	-107390242251.940000
2015-04-01	-64716627583.002700
2015-07-01	-68587452628.036500
2015-10-01	-81334573199.557800
2016-01-01	-100066070897.902000
2016-04-01	-60554956659.255700
2016-07-01	-87000455237.865690
2016-10-01	-79647550056.613300
2017-01-01	-85104280892.825800
2017-04-01	-79415781542.377610
2017-07-01	-84815964914.457800
2017-10-01	-79948326394.681500
2018-01-01	-101376020620.550000
2018-04-01	-68104176660.384400