Year	PNG (NFL, current US$)
1970	7500000
1971	14100000
1972	31000000
1973	4200000
1974	25100000
1975	32800000
1976	7400000
1977	38400000
1978	9500000
1979	-50200000
1980	-17900000
1981	-13100000
1982	-13600000
1983	-12200000
1984	-7400000
1985	-10000000
1986	-20840000
1987	-13546000
1988	-14588000
1989	-15900000
1990	-13546000
1991	-4690000
1992	-9378000
1993	-3712000
1994	0
1995	-3376000
1996	-3000000
1997	43000000
1998	37000000
1999	11665000
2000	18200000
2001	45000000
2002	-28900000
2003	9850000
2004	178878000
2005	379517000
2006	431233000
2007	-210066000
2008	236823000
2009	178335000
2010	198605000
2011	228823000
2012	99006000
2013	474982000
2014	363615000
2015	636286000
2016	381388000
2017	-25162000
2018	179941000
2019	170301000
2020	133803000
2021	340058000
2022	451889000
