Year	PNG (DOD, current US$)
1970	10000000
1971	10000000
1972	9000000
1973	8000000
1974	6000000
1975	10000000
1976	10000000
1977	10000000
1978	10000000
1979	8500000
1980	10000000
1981	10000000
1982	16000000
1983	21000000
1984	32000000
1985	40165000
1986	37665000
1987	29666000
1988	32000000
1989	33000000
1990	33000000
1991	34000000
1992	35000000
1993	37000000
1994	32000000
1995	27000000
1996	271000000
1997	267000000
1998	263000000
1999	260000000
2000	257000000
2001	255000000
2002	253000000
2003	1000000
2004	0
2005	750000000
2006	2351742000
2007	3992178000
2008	5308083000
2009	6295159000
2010	9556198000
2011	10821494000
2012	11242801000
2013	12818788000
2014	11481956000
2015	12039344000
2016	14842986000
2017	12669259000
2018	13401202000
2019	6777906000
2020	9972603000
2021	9566075000
2022	8885135000