Year	PNG (NFL, current US$)
1978	67900000
1979	89400000
1980	78700000
1981	68200000
1982	-26300000
1983	-17900000
1984	-6100000
1985	-1800000
1986	36900000
1987	20000000
1988	1700000
1989	3000000
1990	6000000
1991	-36000000
1992	-20000000
1993	-24000000
1994	-23500000
1995	-23800000
1996	-23764000
1997	-13800000
1998	-23800000
1999	-2036000
2000	-2000000
2001	-6358000
2002	-8016000
2003	-8016000
2004	-6516000
2005	-6516000
2006	-6516000
2007	-6515000
2008	-6516000
2009	-6515000
2010	-6516000