Year	Dollars
1974-01-01	178000000
1975-01-01	327000000
1976-01-01	1132000000.00000000
1977-01-01	1645000000.00000000
1978-01-01	801575427.53775001
1979-01-01	-395815802.83781195
1980-01-01	644678580.01399994
1981-01-01	899000000
1982-01-01	280000000
1983-01-01	883000000
1984-01-01	-507000000.00000000
1985-01-01	1065000000.00000000
1986-01-01	2124000000.00000000
1987-01-01	1891000000.00000000
1988-01-01	-958000000.00000000
1989-01-01	780000000
1990-01-01	4037000000.00000000
1991-01-01	-2397000000.00000000
1992-01-01	3648000000.00000000
1993-01-01	8963000000.00000000
1994-01-01	-4194000000.00000000
1995-01-01	4643000000.00000000
1996-01-01	5483000000.00000000
1997-01-01	6969000000.00000000
1998-01-01	-840000000.00000000
1999-01-01	4979000000.00000000
2000-01-01	8584000000.00000000
2001-01-01	-14557000000.00000000
2002-01-01	1171000000.00000000
2003-01-01	7162000000.00000000
2004-01-01	17702000000.00000000
2005-01-01	42685000000.00000000
2006-01-01	42689000000.00000000
2007-01-01	49287000000.00000000
2008-01-01	34707000000.00000000