Quarter	US Dollars, sum over component sub-periods
2000-04-01	-120873361.35251800
2000-07-01	15851781.16628860
2000-10-01	426231337.03958500
2001-01-01	-352887127.42731800
2001-04-01	-5793259.29178990
2001-07-01	105126169.82068801
2001-10-01	66045227.92780191
2002-01-01	-203925390.26915902
2002-04-01	103646172.44096600
2002-07-01	124096619.81289300
2002-10-01	1057966383.39367000
2003-01-01	-14822664.41872760
2003-04-01	552227814.60419610
2003-07-01	-516605295.65131000
2003-10-01	803205954.76575710
2004-01-01	644476438.67385710
2004-04-01	-2080623754.24084000
2004-07-01	806483823.06708300
2004-10-01	1259725661.10730000
2005-01-01	-461270859.65600000
2005-04-01	1188375758.54810000
2005-07-01	146438288.06165300
2005-10-01	1565475409.13545010
2006-01-01	478048838.52187700
2006-04-01	428575514.68135804
2006-07-01	1647357021.00031000
2006-10-01	1704229424.59848000
2007-01-01	651392887.49576100
2007-04-01	1507353245.78483000
2007-07-01	789286225.47585000
2007-10-01	138980856.35239202
2008-01-01	1959726848.14610000
2008-04-01	265325513.85876400
2008-07-01	-4266907965.51613040
2008-10-01	-2927066349.31939030
2009-01-01	399006120.23438495
2009-04-01	832723031.24865510
2009-07-01	876570869.12253000
2009-10-01	1522500953.22432000
2010-01-01	1217904464.02395990
2010-04-01	571021887.31434110
2010-07-01	-617979546.57547090
2010-10-01	-326761022.74225400
2011-01-01	1940813237.70080020
2011-04-01	2584353387.93400000
2011-07-01	-366709694.67053400
2011-10-01	-3749395693.27666000
2012-01-01	1851035600.22960000
2012-04-01	1211072783.21074000
2012-07-01	-2101502629.65986000
2012-10-01	-450221897.88999200
2013-01-01	2440919723.19778000
2013-04-01	-1714670353.01718020
2013-07-01	-2107383397.99575000
2013-10-01	534367981.53373104
2014-01-01	1682812613.31313000
2014-04-01	99850960.75279531
2014-07-01	424169184.47954200
2014-10-01	-2345962734.47193000
2015-01-01	3243734767.45028970
2015-04-01	-105207771.51143400
2015-07-01	-3186767664.24715000
2015-10-01	-478438846.24891600
2016-01-01	1688454091.22123000
2016-04-01	1042514810.86032010
2016-07-01	-85260868.39834730
2016-10-01	454752845.48889196
2017-01-01	657462305.32598500
2017-04-01	962858403.46653200
2017-07-01	997547666.46699610
2017-10-01	-747135776.80991790
2018-01-01	770215062.61598190
2018-04-01	1093631771.22773000