Year	current US$
1970	810000.009834766
1971	429999.992251396
1972	349999.990314245
1973	279999.993741512
1974	250000.00372529
1975	300000.011920929
1976	189999.993890524
1977	219999.998807907
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	1279999.97138977
1991	4600000.202655789
1992	18969999.719411097
1993	32440000.459551796
1994	38930000.6311387
1995	53830000.013113
1996	43740000.2777576
1997	20300000.108778503
1998	21299999.8163432
1999	15550000.1907349
2000	15010000.1394749
2001	15350000.1356006
2002	15589999.9141693
2003	16940000.1466274
2004	18170000.195503198
2005	19620000.1239777
2006	21279999.9117851
2007	20999999.9403954
2008	20080000.042915303
2009	21660000.20504
2010	23470000.1478195
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