Year	US Dollars adjusted for inflation)
1965	1000000
1966	8000000
1968	6000000
1969	138000000
1970	92000000
1971	165000000
1972	177000000
1973	99000000
1974	295000000
1975	255000000
1976	254000000
1977	171000000
1978	50000000
1979	338000000
1980	410000000
1981	167000000
1982	176000000
1983	245000000
1984	83000000
1985	123000000
1986	75000000
1987	277000000
1988	542000000
1989	233000000
1990	522000000
1991	370000000
1992	111000000
1993	170000000
1994	179000000
1995	302000000
1996	165000000
1997	619000000
1998	804000000
1999	308000000
2000	788000000
2001	247000000
2002	232000000
2003	83000000
2004	377000000
2005	542000000
2006	73000000
2007	356000000
2008	1110000000
2009	1426000000
2010	962000000
2011	891000000
2012	748000000
2013	755000000
2014	66000000
2015	152000000
2016	636000000
2017	403000000
2018	568000000
2019	489000000
2020	154000000
2021	156000000
2022	361000000