Year	US Dollars, Sum Over Component Sub-periods
1982-01-01	-3420900000.000000
1983-01-01	-750900000.000000
1984-01-01	721500000.000000
1985-01-01	-1155600000.000000
1986-01-01	911300000.000000
1987-01-01	286800000.000000
1988-01-01	-490400000.000000
1989-01-01	-3108800000.000000
1990-01-01	-6244800000.000000
1991-01-01	-4699900000.000000
1992-01-01	-7372500000.000000
1993-01-01	-2593800000.000000
1994-01-01	2363700000.000000
1995-01-01	8425299999.999999
1996-01-01	9627900000.000000
1997-01-01	10326600000.000000
1998-01-01	9704800000.000000
1999-01-01	10634000000.000000
2000-01-01	10288000000.000000
2001-01-01	11360300000.000000
2002-01-01	11814900000.000000
2003-01-01	21837500000.000000
2004-01-01	24030300000.000000
2005-01-01	25103300000.000000
2006-01-01	34679800000.000000
2007-01-01	43238700000.000000
2008-01-01	43888100000.000000
2009-01-01	25431100000.000000
2010-01-01	29376400000.000000
2011-01-01	32743100000.000000
2012-01-01	31373500000.000000
2013-01-01	38586500000.000000