Year	US Dollars adjusted for inflation)
1977	1000000
1978	1000000
1979	7000000
1980	2000000
1981	11000000
1985	4000000
1987	26000000
1988	40000000
1989	4000000
1990	22000000
1991	2000000
1992	2000000
1993	11000000
1995	11000000
1996	32000000
1997	71000000
1998	2000000
2000	53000000
2001	15000000
2002	1000000
2003	10000000
2004	9000000
2009	10000000
2010	10000000
2012	6000000
2013	8000000
2016	5000000
2018	5000000
2019	8000000
2020	85000000
2021	32000000
2022	13000000