Year	US Dollars adjusted for inflation)
1960	20000000
1964	60000000
1965	12000000
1967	128000000
1968	24000000
1975	24000000
1980	18000000
1981	29000000
1982	64000000
1983	115000000
1987	117000000
1988	36000000
1990	80000000
1991	8000000
1993	183000000
1994	272000000
1995	16000000
1999	3000000
2000	18000000
2002	10000000
2003	2000000
2006	5000000
2007	6000000
2008	8000000
2009	10000000
2010	8000000
2011	26000000
2012	26000000
2013	8000000
2014	19000000
2015	22000000
2016	21000000
2017	13000000
2018	25000000
2019	2000000
2021	24000000
2022	67000000