Year	US Dollars, Sum Over Component Sub-periods
1979-01-01	-2839480000.000000
1980-01-01	-2822770000.000000
1981-01-01	1202460000.000000
1982-01-01	780070000.000000
1983-01-01	6470390000.000000
1984-01-01	13089520000.000000
1985-01-01	12485520000.000000
1986-01-01	8304299999.999999
1987-01-01	11173100000.000000
1988-01-01	19184110000.000000
1989-01-01	16119190000.000000
1990-01-01	10752390000.000000
1991-01-01	10579970000.000000
1992-01-01	15238890000.000000
1993-01-01	13298770000.000000
1994-01-01	10466470000.000000
1995-01-01	-3465620000.000000
1996-01-01	-5599040000.000000
1997-01-01	-6752890000.000000
1998-01-01	-6574500000.000000
1999-01-01	-1198870000.000000
2000-01-01	-697750000.000000
2001-01-01	2650470000.000000
2002-01-01	13121300000.000000
2003-01-01	24793920000.000000
2004-01-01	33640540000.000000
2005-01-01	44702880000.000000
2006-01-01	46456630000.000000
2007-01-01	40031630000.000000
2008-01-01	24835750000.000000
2009-01-01	25289810000.000000
2010-01-01	20146860000.000000
2011-01-01	29792820000.000000
2012-01-01	19394540000.000000
2013-01-01	2286060000.000000
2014-01-01	-3959170000.000000