Year	US Dollars, Sum Over Component Sub-periods
1980-01-01	-3058300000.000000
1981-01-01	-3876900000.000000
1982-01-01	7044600000.000000
1983-01-01	14104900000.000000
1984-01-01	13184200000.000000
1985-01-01	8398200000.000001
1986-01-01	5019700000.000000
1987-01-01	8787100000.000000
1988-01-01	2609500000.000000
1989-01-01	405100000.000000
1990-01-01	-882300000.000000
1991-01-01	-7279000000.000000
1992-01-01	-15933700000.000000
1993-01-01	-13480600000.000000
1994-01-01	-18463700000.000000
1995-01-01	7006400000.000000
1996-01-01	6498200000.000000
1997-01-01	572700000.000000
1998-01-01	-7800600000.000000
1999-01-01	-5591100000.000000
2000-01-01	-8365299999.999999
2001-01-01	-9625900000.000000
2002-01-01	-7635000000.000000
2003-01-01	-5791800000.000000
2004-01-01	-8843300000.000000
2005-01-01	-7662500000.000000
2006-01-01	-6312200000.000000
2007-01-01	-10311400000.000000
2008-01-01	-17615000000.000000
2009-01-01	-4925600000.000000
2010-01-01	-2942900000.000000
2011-01-01	-1205100000.000000
2012-01-01	291200000.000000
2013-01-01	-909200000.000000
2014-01-01	-2790000000.000000
2015-01-01	-14524100000.000000
2016-01-01	-13082400000.000000