Quarter	US Dollars, sum over component sub-periods
1995-01-01	-991173684.94721000
1995-04-01	740161008.36686200
1995-07-01	1471071548.78223000
1995-10-01	3376092804.03740020
1996-01-01	-903788207.78057190
1996-04-01	-686612169.08623000
1996-07-01	561856031.01680400
1996-10-01	-408091723.23157203
1997-01-01	-468022618.44539800
1997-04-01	-259883195.03508303
1997-07-01	182806851.30936602
1997-10-01	369324768.66108900
1998-01-01	1270793095.88078000
1998-04-01	148779155.54231500
1998-07-01	-1212719398.72312020
1998-10-01	583900119.53918400
1999-01-01	-129601434.83266000
1999-04-01	711536288.82206700
1999-07-01	740781921.27289400
1999-10-01	1004035619.40867000
2000-01-01	276204651.07985400
2000-04-01	-153136015.49245900
2000-07-01	676471804.74289500
2000-10-01	251122601.65009900
2001-01-01	-65626163.93538600
2001-04-01	1138134864.93754000
2001-07-01	-289934654.97181400
2001-10-01	-868148395.27778600
2002-01-01	-973410241.35881600
2002-04-01	-478417488.30855900
2002-07-01	-77737577.09443070
2002-10-01	-264347734.07730000
2003-01-01	2801984943.87199970
2003-04-01	-1798736631.06521000
2003-07-01	215213397.55669900
2003-10-01	-884335242.05096500
2004-01-01	-141985508.92373800
2004-04-01	486416900.50324800
2004-07-01	-38048984.20419090
2004-10-01	1675034450.27419000
2005-01-01	2068592359.77568000
2005-04-01	876510220.89825400
2005-07-01	541618734.15104010
2005-10-01	1419066613.61004000
2006-01-01	2683851602.45250030
2006-04-01	-1372870678.85711000
2006-07-01	-168385023.94077200
2006-10-01	-41642361.53974330
2007-01-01	828155072.73461200
2007-04-01	67295894.48093600
2007-07-01	-635962178.55992700
2007-10-01	-104796402.19252100
2008-01-01	671730326.18824200
2008-04-01	1176948567.67965000
2008-07-01	-186889038.91422898
2008-10-01	8710802577.96045900
2009-01-01	4434434432.55169000
2009-04-01	-769815325.27068400
2009-07-01	5342865963.40285000
2009-10-01	113142361.49145500
2010-01-01	4023970971.99822000
2010-04-01	1210163339.17074010
2010-07-01	-1486509941.67382000
2010-10-01	411143796.17914800
2011-01-01	3294362643.83890000
2011-04-01	1831878512.68313000
2011-07-01	1879162741.26133000
2011-10-01	-1450913443.15770980
2012-01-01	-3648388067.38302000
2012-04-01	630959829.16597000
2012-07-01	-1107986374.13866000
2012-10-01	-183571025.71916100
2013-01-01	2387127158.47320000
2013-04-01	-843562382.25940300
2013-07-01	-4404900695.50284000
2013-10-01	4511025842.80073000
2014-01-01	3344945893.93150000
2014-04-01	-263889079.48308298
2014-07-01	-709236106.28995800
2014-10-01	-1170522421.50065000
2015-01-01	1469637134.88824000
2015-04-01	-1869612143.77307000
2015-07-01	-2812825519.49023000
2015-10-01	-2175039519.64127000
2016-01-01	-3070203392.62514000
2016-04-01	-3720953761.08201000
2016-07-01	-1187600108.39039000
2016-10-01	1132329232.91121000
2017-01-01	-36571230.39126350
2017-04-01	-367892034.13603200
2017-07-01	-1080649357.37351000
2017-10-01	1552791866.87608980
2018-01-01	-358077695.21595300
2018-04-01	848333577.66990700