Year	current US$
1970	566033.761357938
1971	740178.340547521
1972	6491423.1479346
1973	11291868.7196394
1974	12668612.0615975
1975	13852701.088625
1976	14501878.1626787
1977	14378900.3101219
1978	5941414.8694017
1979	21951838.422495
1980	44993200.602323
1981	29760918.7499939
1982	14267384.7291099
1983	23167215.0137815
1984	19169566.2625875
1985	17166101.0105743
1986	9554106.5787837
1987	17769823.6293271
1988	67197286.7920035
1989	61991124.7039528
1990	28359575.9251974
1991	27927841.3468311
1992	17927523.9680349
1993	6286050.60368827
1994	93558407.0431871
1995	152300581.675063
1996	84771127.7905664
1997	65729408.1046676
1998	2694353.46131429
1999	27105400.6054345
2000	55614887.7052051
2001	0
2002	1595292.44020233
2003	83703429.5042398
2004	201357285.412605
2005	193271378.361003
2006	450206165.098495
2007	833310137.794261
2008	57217366.1992006
2009	25207142.4156311
2010	35598708.146127
2011	91827983.2612062
2012	158866105.305143
2013	451066034.30996
2014	479666143.293939
2015	243096604.846619
2016	701609544.550986
2017	592153533.822812
2018	532265056.705963
2019	597035131.534669
2020	602010297.610291
2021	1267191562.40868