Year	current US$
1980	37299999.24
1981	31600000.38
1982	34500000
1983	38299999.24
1984	31600000.38
1985	30799999.24
1986	27100000.38
1987	39200000.76
1988	40599998.47
1989	35799999.24
1990	21800000
1991	16100000
1992	20000000
1993	23700000
1994	24800000
1995	20400000
1996	20000000
1997	21300000
1998	20600000
1999	21200000
2000	22000000
2001	42100000
2002	44700000
2003	56600000
2004	72300000
2005	87600000
2006	236300000
2007	295900000
2008	387600000
2009	449800000
2010	485800000
2011	463600000
2012	563600000
2013	644200000
2014	814500000
2015	828900000
2016	838790100
2017	838408100
2018	797138800
2019	823651524.89
2020	508879203.37
2021	550866867.86
2022	563382434.54