Quarter	US Dollars, sum over component sub-periods
1996-01-01	283477225.238802970
1996-04-01	724351740.351857000
1996-07-01	-304320395.561776040
1996-10-01	22537290.897596598
1997-01-01	44633336.781699810
1997-04-01	212300091.114535000
1997-07-01	-423480236.576678040
1997-10-01	1416127323.086780000
1998-01-01	1315679.692219710
1998-04-01	81335940.231607200
1998-07-01	720884952.841288100
1998-10-01	-289513955.767970000
1999-01-01	-430963147.889972000
1999-04-01	535910789.758442000
1999-07-01	155189207.749878000
1999-10-01	21547520.307912100
2000-01-01	66147700.618914800
2000-04-01	-223532971.729622000
2000-07-01	228747583.539330000
2000-10-01	282008737.285810000
2001-01-01	-44122025.468578696
2001-04-01	143581524.975060020
2001-07-01	476204040.015041000
2001-10-01	285783823.881915000
2002-01-01	381519606.752948000
2002-04-01	433544003.263759000
2002-07-01	273296147.460173000
2002-10-01	-69658514.497572300
2003-01-01	-3437279739.598210300
2003-04-01	-1416707785.979040000
2003-07-01	-676125890.355330000
2003-10-01	-890744177.203327100
2004-01-01	-261602603.442929980
2004-04-01	-925829164.048219000
2004-07-01	-452229195.366212960
2004-10-01	-240561389.004791020
2005-01-01	-375289210.549385960
2005-04-01	446003696.983121040
2005-07-01	-481686999.923970000
2005-10-01	-1312678119.684630000
2006-01-01	-1275664535.255820000
2006-04-01	-670841025.923973000
2006-07-01	-459018435.621297000
2006-10-01	45015069.893020100
2007-01-01	27799577.868689600
2007-04-01	-285519024.177310000
2007-07-01	-767531133.921797000
2007-10-01	52191194.258231400
2008-01-01	236081536.520293030
2008-04-01	48859615.061615400
2008-07-01	-81174449.858791200
2008-10-01	-73261167.701343200
2009-01-01	-29247810.376538300
2009-04-01	-132001491.520294000
2009-07-01	1198981176.452849900
2009-10-01	30574707.641866700
2010-01-01	365688474.197661000
2010-04-01	549094121.562339000
2010-07-01	619432034.462503000
2010-10-01	-241271846.778375980
2011-01-01	408800421.924465950
2011-04-01	-942739649.210256000
2011-07-01	-697510304.707522000
2011-10-01	-486385283.215855000
2012-01-01	59013489.743839600
2012-04-01	198764728.475672000
2012-07-01	-33786393.265011500
2012-10-01	-5191214.328161920
2013-01-01	21111915.141830000
2013-04-01	604682564.353410000
2013-07-01	140408272.529373970
2013-10-01	-201444826.841144000
2014-01-01	285062422.070505000
2014-04-01	186491053.334703980
2014-07-01	920543415.622591000
2014-10-01	840336681.904091000
2015-01-01	1720114771.199050000
2015-04-01	-1620359935.225820000
2015-07-01	-91159188.907469300
2015-10-01	1635938894.671590000
2016-01-01	-306393244.139332000
2016-04-01	378287834.439715000
2016-07-01	3232681585.909370000
2016-10-01	1870555974.224110100
2017-01-01	1297848546.717420000
2017-04-01	-1198756875.601000000
2017-07-01	-644795338.933954000
2017-10-01	-937303978.052771900
2018-01-01	156067457.434788000
2018-04-01	-2053641540.310240000