Quarter	US Dollars, sum over component sub-periods
1996-04-01	682197.01247586000
1996-07-01	0.00000000000
1996-10-01	0.00000000000
1997-01-01	2789325.71537488000
1997-04-01	2761014.57185701000
1997-07-01	0.00000000000
1997-10-01	0.00000000000
1998-01-01	0.00000000000
1998-04-01	534153.83679059010
1998-07-01	-3043584.68550256970
1998-10-01	-1051739.63312726000
1999-01-01	-2684266.50053016000
1999-04-01	-2712369.84015229000
1999-07-01	524960.27005228900
1999-10-01	0.00000000000
2000-01-01	497529.10530673200
2000-04-01	1433280.96465436000
2000-07-01	0.00000000000
2000-10-01	0.00000000000
2001-01-01	-863860.77705585790
2001-04-01	413804.23512784997
2001-07-01	1675317.44734164980
2001-10-01	415378.79199875396
2002-01-01	424844.56306074705
2002-04-01	21747187.96752410000
2002-07-01	0.00000000000
2002-10-01	0.00000000000
2003-01-01	0.00000000000
2003-04-01	-1706162.14604798000
2003-07-01	0.00000000000
2003-10-01	0.00000000000
2004-01-01	0.00000000000
2004-04-01	4401440.39881714100
2004-07-01	0.00000000000
2004-10-01	0.00000000000
2005-01-01	0.00000000000
2005-04-01	0.00000000000
2005-07-01	0.00000000000
2005-10-01	-693608.95398114900
2006-01-01	-663956.72016927400
2006-04-01	0.00000000000
2006-07-01	0.00000000000
2006-10-01	0.00000000000
2007-01-01	0.00000000000
2007-04-01	0.00000000000
2007-07-01	0.00000000000
2007-10-01	763631.07885929600
2008-01-01	789257.69156105400
2008-04-01	99303116.29801710000
2008-07-01	-1422539.74512956010
2008-10-01	20690042.91684629800
2009-01-01	515892067.57335293000
2009-04-01	-1807647.67998984000
2009-07-01	6063903.01468313950
2009-10-01	2183318.76657407000
2010-01-01	5671266.42153182100
2010-04-01	-699781.72464992800
2010-07-01	4825270529.36545000000
2010-10-01	-758146.22445998700
2011-01-01	10679387215.63060000000
2011-04-01	887846567.81390900000
2011-07-01	-9978495.09307576900
2011-10-01	24799640.79885349800
2012-01-01	-5725695.62598638050
2012-04-01	-1580003.63106425000
2012-07-01	-6471139.73721279000
2012-10-01	6584598.14098709000
2013-01-01	834502.46946932610
2013-04-01	2457721.48067441000
2013-07-01	0.00000000000
2013-10-01	-827195.01785407200
2014-01-01	-836803.88528748500
2014-04-01	14633330.45515100100
2014-07-01	-2524816.57428299000
2014-10-01	21120704.84519570000
2015-01-01	-3006241.67511612000
2015-04-01	-8036704.76823450100
2015-07-01	241382360.84844700000
2015-10-01	-3331746.84017351040
2016-01-01	-6634397.21501466000
2016-04-01	49742257.37703290000
2016-07-01	-7948047.05408322100
2016-10-01	914479550.22531900000
2017-01-01	2134617.87443502000
2017-04-01	69077689.26773070000
2017-07-01	-10954037.33309290000
2017-10-01	119068236.56523400000
2018-01-01	-15273386.51079850000
2018-04-01	-16900941.73178720000