Year	US Dollars, Sum Over Component Sub-periods
1980-01-01	-31830920000.000000
1981-01-01	-29521060000.000000
1982-01-01	-24518120000.000000
1983-01-01	-18603360000.000000
1984-01-01	-16250720000.000000
1985-01-01	-16454840000.000000
1986-01-01	-10914640000.000000
1987-01-01	-11885200000.000000
1988-01-01	-12287420000.000000
1989-01-01	-13959200000.000000
1990-01-01	-17073599999.999998
1991-01-01	-15186340000.000000
1992-01-01	-15956470000.000000
1993-01-01	-13332160000.000000
1994-01-01	-13353940000.000000
1995-01-01	-16220210000.000000
1996-01-01	-17300880000.000000
1997-01-01	-18986980000.000000
1998-01-01	-17160820000.000000
1999-01-01	-18767300000.000000
2000-01-01	-20570560000.000000
2001-01-01	-19372340000.000000
2002-01-01	-21488360000.000000
2003-01-01	-25631600000.000000
2004-01-01	-31641410000.000000
2005-01-01	-34244920000.000000
2006-01-01	-44308800000.000000
2007-01-01	-57059970000.000000
2008-01-01	-64949750000.000000
2009-01-01	-42838200000.000000
2010-01-01	-37536600000.000000
2011-01-01	-37883130000.000000
2012-01-01	-25248680000.000000
2013-01-01	-22887870000.000000