Year	US Dollars, Sum Over Component Sub-periods
1990-01-01	-213870000
1991-01-01	-180370000
1992-01-01	-157690000
1993-01-01	-149430000
1994-01-01	-195160000
1995-01-01	-198080000
1996-01-01	-169690000
1997-01-01	-171300000
1998-01-01	-182030000
1999-01-01	-177830000
2000-01-01	-248080000
2001-01-01	-255150000
2002-01-01	-21830000
2003-01-01	-181230000
2004-01-01	-553180000
2005-01-01	-616170000
2006-01-01	-1023070000
2007-01-01	-1093550000
2008-01-01	-3698990000
2009-01-01	-2365390000
2010-01-01	-2209760000
2011-01-01	-2025710000
2012-01-01	-1475530000
2013-01-01	-406210000