Quarter	US Dollars, sum over component sub-periods
1999-01-01	366527187.389086960
1999-04-01	57884447.983560600
1999-07-01	604544069.722904100
1999-10-01	1017095955.312570000
2000-01-01	894432621.945837000
2000-04-01	290940647.122429000
2000-07-01	513898126.378307000
2000-10-01	532151589.333436100
2001-01-01	-163171112.572961000
2001-04-01	495690864.036302030
2001-07-01	-225539003.298667000
2001-10-01	357177938.112913000
2002-01-01	-908786515.163991000
2002-04-01	249028158.359379000
2002-07-01	-151091548.255753000
2002-10-01	292687036.563447000
2003-01-01	1886263010.977040000
2003-04-01	110832521.965604990
2003-07-01	1123236928.720039800
2003-10-01	2879665642.457910000
2004-01-01	-973900359.573710100
2004-04-01	2809475803.080650300
2004-07-01	522624610.017932000
2004-10-01	1807078729.602750000
2005-01-01	489409075.877099000
2005-04-01	3257261625.794230000
2005-07-01	1199634492.928410000
2005-10-01	2601477886.381010000
2006-01-01	435035448.718198000
2006-04-01	3283014816.476939700
2006-07-01	1736320927.051060000
2006-10-01	2262780257.264219800
2007-01-01	1547030785.004860000
2007-04-01	6297827838.010940000
2007-07-01	3726461934.143140000
2007-10-01	4105034506.313430000
2008-01-01	6311300608.214100000
2008-04-01	3628136521.022310000
2008-07-01	6496607654.224480000
2008-10-01	13266696622.847900000
2009-01-01	8814214850.535340000
2009-04-01	1348385868.844010000
2009-07-01	2607390450.850530000
2009-10-01	614542858.193220000
2010-01-01	67447865.810073500
2010-04-01	953689870.604957900
2010-07-01	-1002766636.926850000
2010-10-01	-808945066.751505000
2011-01-01	-3403741216.269210000
2011-04-01	-1747890118.588180000
2011-07-01	-153152932.381869000
2011-10-01	-2976084154.290430000
2012-01-01	-4897772447.396580000
2012-04-01	-1863476318.767210000
2012-07-01	-5694699525.199719000
2012-10-01	-5205096845.301060000
2013-01-01	-2179626203.967519800
2013-04-01	-3798248655.454780000
2013-07-01	-4378146702.833910000
2013-10-01	-2485775224.504970000
2014-01-01	-63334315.189312000
2014-04-01	172010814.452542000
2014-07-01	-154219291.782776000
2014-10-01	-4408670569.051209000
2015-01-01	2342463722.420680000
2015-04-01	-425677034.679268000
2015-07-01	-3529478462.606920000
2015-10-01	-2497455373.259410000
2016-01-01	1887412315.792320000
2016-04-01	-1084829729.368530000
2016-07-01	-2299322195.245370000
2016-10-01	52815628.053934805
2017-01-01	1654063905.621909900
2017-04-01	1654130988.869450000
2017-07-01	-1454237193.316180000
2017-10-01	-1574543024.644169800
2018-01-01	44704245.983699200
2018-04-01	1958710390.350520000