Quarter	US Dollars, sum over component sub-periods
1995-01-01	-3111166.50831896000
1995-04-01	-441630.63458307600
1995-07-01	-387313.51081960500
1995-10-01	-462234.45093444400
1996-01-01	-996319.51401106300
1996-04-01	-536289.19960428500
1996-07-01	-450381.28656975203
1996-10-01	-329421.87019807100
1997-01-01	-886138.83529913390
1997-04-01	-580052.06994713800
1997-07-01	-668574.96444961090
1997-10-01	-419975.19103074400
1998-01-01	-1061365.82452169000
1998-04-01	-419277.42235759900
1998-07-01	-463617.86692967800
1998-10-01	-417765.84761597303
1999-01-01	-958880.73358872090
1999-04-01	-420127.54092558200
1999-07-01	-300076.35945455503
1999-10-01	-613661.73185053200
2000-01-01	-903241.94756204300
2000-04-01	-291211.77852780300
2000-07-01	-422582.65040136600
2000-10-01	-938544.22591212400
2001-01-01	-975272.17112578600
2001-04-01	-633083.53186530200
2001-07-01	-598744.04561767000
2001-10-01	-915762.15261584010
2002-01-01	-1253052.66164845020
2002-04-01	-915511.35065915300
2002-07-01	-601884.89340287300
2002-10-01	-921284.86752482800
2003-01-01	-1160529.95712841000
2003-04-01	-1259331.72599801000
2003-07-01	-762550.51690856800
2003-10-01	-1625918.47486496000
2004-01-01	-1836503.94691356000
2004-04-01	-1071122.52368309000
2004-07-01	-949835.23914133910
2004-10-01	-1890224.08387714000
2005-01-01	-1753317.23291289010
2005-04-01	-935807.07790188790
2005-07-01	-1900750.33168929000
2005-10-01	-1867102.38892392000
2006-01-01	-1751154.78494302000
2006-04-01	-1531775.47372376000
2006-07-01	-2107638.59689580000
2006-10-01	-1954243.89268756000
2007-01-01	-4403281.87021014000
2007-04-01	-3089214.53933905000
2007-07-01	-2503722.19427422000
2007-10-01	-4013589.46354198040
2008-01-01	-3045197.14298656000
2008-04-01	-2875640.44518454000
2008-07-01	-3690712.25366614000
2008-10-01	-1984441.64218571010
2009-01-01	-3202483.89885921030
2009-04-01	-2757037.26646157030
2009-07-01	-2342822.03742366000
2009-10-01	-2943970.07071706000
2010-01-01	-3311713.46879762000
2010-04-01	-2518834.72090690000
2010-07-01	-1926454.57049641000
2010-10-01	-3556802.88996307970
2011-01-01	-3330946.10668101000
2011-04-01	-2871767.66001800000
2011-07-01	-3049175.54800818000
2011-10-01	-3438804.52537964000
2012-01-01	-3286833.91305406000
2012-04-01	-2201367.50433877000
2012-07-01	-1805617.00039553010
2012-10-01	-2645086.47173248000
2013-01-01	-3230991.21368729000
2013-04-01	-1568221.20543333000
2013-07-01	-3436144.68055934970
2013-10-01	-2285629.38899144000
2014-01-01	-5172575.70679008000
2014-04-01	-1612287.98501201000
2014-07-01	-3289948.25474035000
2014-10-01	-3547153.65711330000
2015-01-01	-2883987.73508176000
2015-04-01	-2142679.62765527000
2015-07-01	-3000097.68709770000
2015-10-01	-3179970.48052386000
2016-01-01	-2259157.48050716000
2016-04-01	-3495656.31276243970
2016-07-01	-1900612.35857299000
2016-10-01	-4482058.51642566000
2017-01-01	-3119977.35842667000
2017-04-01	-2835154.87903852000
2017-07-01	-2555710.49131296000
2017-10-01	-4798862.34595069000
2018-01-01	-4423694.18425263000
2018-04-01	-4036838.77041514960