Year	current US$
1970	830000.009387732
1971	449999.991804361
1972	349999.990314245
1973	279999.993741512
1974	420000.00551343
1975	300000.011920929
1976	249999.992549419
1977	320000.000298023
1978	519999.980926514
1979	420000.00551343
1980	399999.991059303
1981	209999.993443489
1982	150000.005960464
1983	209999.993443489
1984	150000.005960464
1985	330000.013113022
1986	349999.99403953605
1987	129999.995231628
1988	409999.99642372096
1989	1019999.98092651
1990	1489999.96483326
1991	7080000.22172928
1992	20109999.705105998
1993	33320000.4547834
1994	39950000.6120652
1995	58230000.1364201
1996	49590000.2010167
1997	21450000.1147389
1998	22569999.782368504
1999	16450000.2153218
2000	15850000.1728535
2001	16040000.1332164
2002	16289999.902248401
2003	17820000.1418591
2004	19180000.2157688
2005	19860000.118613202
2006	21559999.9129772
2007	21299999.9523163
2008	20460000.038147002
2009	21980000.1978874
2010	23860000.1335144
2011	22600000.0834465
2012	18714311.4507198
2013	21855747.4017143
2014	24014031.8274498
2015	25506760.6568336
2016	21167057.8718185
2017	25133929.9082756
2018	23999782.7410698
2019	25784999.9070168
2020	28647000.0743866
2021	19698000.1926422
2022	28760000.288486462