Quarter	US Dollars, sum over component sub-periods
1995-01-01	0.0000000000
1995-04-01	-2105367.9679034800
1995-07-01	-2047388.5060090000
1995-10-01	-1965497.4437488000
1996-01-01	1820004.5568466600
1996-04-01	1747029.2337974800
1996-07-01	0.0000000000
1996-10-01	0.0000000000
1997-01-01	1588422.4480777700
1997-04-01	0.0000000000
1997-07-01	1440923.5764536099
1997-10-01	0.0000000000
1998-01-01	1396313.6325674400
1998-04-01	0.0000000000
1998-07-01	1441010.2224894802
1998-10-01	-1511797.1148589000
1999-01-01	1421942.6808283400
1999-04-01	0.0000000000
1999-07-01	0.0000000000
1999-10-01	0.0000000000
2000-01-01	1186473.6850791299
2000-04-01	0.0000000000
2000-07-01	0.0000000000
2000-10-01	992339.2272971960
2001-01-01	0.0000000000
2001-04-01	967005.1785594190
2001-07-01	-974674.6203904560
2001-10-01	973196.8810916180
2002-01-01	-19768393.7620301020
2002-04-01	-36082039.0390798000
2002-07-01	-40430114.3491615000
2002-10-01	-68906070.2875399000
2003-01-01	-24448525.3199777000
2003-04-01	-39685159.0278116000
2003-07-01	-44748914.7088866000
2003-10-01	-83234860.8151417100
2004-01-01	-3786912.0151704000
2004-04-01	-26638326.5402365000
2004-07-01	-32957264.3767933960
2004-10-01	-56857158.2636828940
2005-01-01	-9180101.7895255300
2005-04-01	-36545215.5164857950
2005-07-01	-26846318.3623587000
2005-10-01	-60638253.5351030000
2006-01-01	6012142.7018347900
2006-04-01	-1255163.5036751202
2006-07-01	-52259135.1523854960
2006-10-01	-116023454.7312930100
2007-01-01	20977844.9228427000
2007-04-01	-36398124.8685645000
2007-07-01	-41246265.6270950000
2007-10-01	-13041640.0123298000
2008-01-01	-2996414.8921192703
2008-04-01	10934406.6444358000
2008-07-01	-4498528.6432994700
2008-10-01	-36774398.0143348000
2009-01-01	3903177.5413529803
2009-04-01	65367498.1220895000
2009-07-01	5721694.9484745900
2009-10-01	-56113928.5385625000
2010-01-01	74723493.4221581000
2010-04-01	13977551.2056394010
2010-07-01	32308596.0446446000
2010-10-01	-46148893.9358715000
2011-01-01	2734450.9827723500
2011-04-01	1439297.1743667999
2011-07-01	1411964.1795698800
2011-10-01	-103744229.3839910000
2012-01-01	21900561.7493805000
2012-04-01	14490589.8824200000
2012-07-01	2752965.3771490897
2012-10-01	18818151.9395869000
2013-01-01	17945127.8705554980
2013-04-01	-9795073.9366103100
2013-07-01	60137128.0455999000
2013-10-01	164014200.2321480000
2014-01-01	51941662.4830392000
2014-04-01	80904206.9613789000
2014-07-01	186360372.0548179700
2014-10-01	-168691657.8383990200
2015-01-01	27692947.2326548000
2015-04-01	98991272.4933182000
2015-07-01	142074931.0045679800
2015-10-01	226624043.5361110000
2016-01-01	-50587949.3021415000
2016-04-01	-74415427.7300813000
2016-07-01	-60815031.5609459950
2016-10-01	-98484341.0392189000
2017-01-01	-52531964.9861812000
2017-04-01	-73245144.8761714000
2017-07-01	-81039851.3414259000
2017-10-01	-74419109.8152452100
2018-01-01	-63410085.0679926000
2018-04-01	-56344109.5456348000