Year	US Dollars, Sum Over Component Sub-periods
1993-01-01	21200000
1994-01-01	-165100000
1995-01-01	-158000000
1996-01-01	-399400000
1997-01-01	-562600000
1998-01-01	-480100000
1999-01-01	-245800000
2000-01-01	-305100000
2001-01-01	-322800000
2002-01-01	-777100000
2003-01-01	-1112700000
2004-01-01	-1360400000
2005-01-01	-1387600000
2006-01-01	-2576900000
2007-01-01	-3506600000
2008-01-01	-2174400000
2009-01-01	531400000
2010-01-01	541300000
2011-01-01	404900000
2012-01-01	-398500000
2013-01-01	-269900000