Quarter	US Dollars, sum over component sub-periods
1994-01-01	1358330000.000000
1994-04-01	3481080000.000000
1994-07-01	465480000.000000
1994-10-01	2762390000.000000
1995-01-01	1438910000.000000
1995-04-01	2491050000.000000
1995-07-01	3620910000.000000
1995-10-01	6957790000.000000
1996-01-01	4614480000.000000
1996-04-01	5776280000.000000
1996-07-01	3618030000.000000
1996-10-01	2274800000.000000
1997-01-01	-7298130000.000000
1997-04-01	6989990000.000000
1997-07-01	7347390000.000000
1997-10-01	-22212350000.000000
1998-01-01	2802700000.000000
1998-04-01	4105760000.000000
1998-07-01	3283780000.000000
1998-10-01	-3189990000.000000
1999-01-01	286790000.000000
1999-04-01	-827940000.000000
1999-07-01	-443050000.000000
1999-10-01	-1183130000.000000
2000-01-01	-593280000.000000
2000-04-01	-1311810000.000000
2000-07-01	189250000.000000
2000-10-01	-231790000.000000
2001-01-01	-949310000.000000
2001-04-01	717930000.000000
2001-07-01	-1672730000.000000
2001-10-01	-4652180000.000000
2002-01-01	-196110000.000000
2002-04-01	-3969950000.000000
2002-07-01	-1404380000.000000
2002-10-01	1709900000.000000
2003-01-01	2871130000.000000
2003-04-01	4404760000.000000
2003-07-01	6560180000.000000
2003-10-01	8859450000.000000
2004-01-01	1074580000.000000
2004-04-01	3969660000.000000
2004-07-01	930040000.000000
2004-10-01	11781370000.000000
2005-01-01	8673370000.000000
2005-04-01	7662560000.000000
2005-07-01	-2543370000.000000
2005-10-01	28723740000.000000
2006-01-01	13160220000.000000
2006-04-01	7381860000.000000
2006-07-01	-19809570000.000000
2006-10-01	29886320000.000000
2007-01-01	25099250000.000000
2007-04-01	50081200000.000000
2007-07-01	31431920000.000000
2007-10-01	34164809999.999996
2008-01-01	13618800000.000000
2008-04-01	48208210000.000000
2008-07-01	30572880000.000000
2008-10-01	-28301120000.000000
2009-01-01	-16819210000.000000
2009-04-01	-429720000.000000
2009-07-01	-3635880000.000000
2009-10-01	-4683700000.000000
2010-01-01	-3950950000.000000
2010-04-01	-1252920000.000000
2010-07-01	10076580000.000000
2010-10-01	5620470000.000000
2011-01-01	-1261340000.000000
2011-04-01	17531020000.000000
2011-07-01	5538240000.000000
2011-10-01	13880050000.000000
2012-01-01	-1152310000.000000
2012-04-01	19435060000.000000
2012-07-01	4343120000.000000
2012-10-01	17961070000.000000
2013-01-01	45277450000.000000
2013-04-01	12312270000.000000
2013-07-01	-6318290000.000000
2013-10-01	11985800000.000000
2014-01-01	5934450000.000000
2014-04-01	-1005660000.000000
2014-07-01	-10938590000.000000
2014-10-01	-20723660000.000000
2015-01-01	-22112150000.000000
2015-04-01	-7492100000.000000
2015-07-01	3801640000.000000
2015-10-01	-12451730000.000000
2016-01-01	-6077780000.000000
2016-04-01	-4966610000.000000
2016-07-01	-9764950000.000000
2016-10-01	-7302620000.000000
2017-01-01	-1584050000.000000
2017-04-01	-2898040000.000000
2017-07-01	-8773390000.000000
2017-10-01	-9135420000.000000
2018-01-01	-3719710000.000000
2018-04-01	-6455710000.000000