Year	PNG (DOD, current US$)
1974	22500000
1975	38800000
1976	44400000
1977	62400000
1978	85800000
1979	138100000
1980	150800000
1981	132800000
1982	131500000
1983	129600000
1984	110243000
1985	103837000
1986	86164000
1987	28359000
1988	28398000
1989	27431000
1990	19067000
1991	20293000
1992	20997000
1993	25662000
1994	137630000
1995	337559000
1996	408200000
1997	482000000
1998	534000000
1999	558000000
2000	450000000
2001	360000000
2002	827534000
2003	1194667000
2004	1592201000
2005	2613502000
2006	3721403000
2007	4898003000
2008	9523150000
2009	10866446000
2010	12561339000
2011	12333230000
2012	12588015000
2013	12055515000
2014	11657260000
2015	11268497000
2016	10484158000
2017	9335972000
2018	8359150000
2019	8057842000
2020	8415188000
2021	8571590000
2022	9041187000