Year	US Dollars adjusted for inflation)
1974	8000000
1983	14000000
1986	22000000
1987	1000000
1990	2000000
1995	28000000
1996	6000000
1997	37000000
2004	3000000
2005	11000000
2006	17000000
2007	3000000
2009	34000000
2010	39000000
2011	3000000
2012	70000000
2013	108000000
2014	87000000
2015	142000000
2016	95000000
2017	101000000
2018	114000000
2019	128000000
2020	191000000
2021	57000000
2022	12000000