Year	US Dollars, Sum Over Component Sub-periods
1993-01-01	-145500000
1994-01-01	-355400000
1995-01-01	-664100000
1996-01-01	-1020800000
1997-01-01	-1127600000
1998-01-01	-1117400000
1999-01-01	-824000000
2000-01-01	-788000000
2001-01-01	-774800000
2002-01-01	-1111000000
2003-01-01	-1553300000
2004-01-01	-1949300000
2005-01-01	-1927400000
2006-01-01	-2892100000
2007-01-01	-3613800000
2008-01-01	-2986200000
2009-01-01	-968800000
2010-01-01	-358600000
2011-01-01	-456100000
2012-01-01	-997500000
2013-01-01	-1119500000