Year	PNG (DOD, current US$)
1972	3100000
1973	7600000
1974	6900000
1975	6500000
1976	14300000
1977	12400000
1978	15063000
1979	23098000
1980	24007000
1981	23586000
1982	18444000
1983	14370000
1984	12691000
1985	14768000
1986	21842000
1987	46330000
1988	65505000
1989	106195000
1990	147458000
1991	172121000
1992	194659000
1993	166771000
1994	245350000
1995	267001000
1996	246000000
1997	189000000
1998	157000000
1999	136147000
2000	118422000
2001	86518000
2002	1190442000
2003	2294366000
2004	2462932000
2005	2892944000
2006	2882637000
2007	5021048000
2008	5893120000
2009	5124699000
2010	5287217000
2011	6801092000
2012	6257942000
2013	7603914000
2014	5461281000
2015	3696398000
2016	4057219000
2017	3696142000
2018	4810013000
2019	5129517000
2020	4079379000
2021	4138734000
2022	5636184000