Year	current US$
1970	20328.0936170213
1971	17407.1489361702
1972	19664.7572841134
1973	28404.4682926829
1974	36029.8125
1975	47318.76875
1976	40325.175
1977	49714.9714285714
1978	69600.3
1979	89885.4
1980	98940.05
1981	110200.2
1982	278201.733333333
1983	177593.428571429
1984	185617.457142857
1985	69988.556
1986	210526.171428571
1987	222885.457142857
1988	243991.314285714
1989	241722.276190476
1990	267835.228571429
1991	303582.085714286
1992	178986.653094025
1993	108056.310308472
1994	53546.7466266867
1995	69904.3172413793
1996	68493.8896551724
1997	73128.1517241379
1998	118219.2
1999	105391.471550701
2000	106951.493677424
2001	121407.507692308
2002	137466.576923077
2003	199205.480000867
2004	197006.360995771
2005	198083.553796952
2006	245455.822420024
2007	229721.625115539
2008	408692.70412159
2009	403353.792322124
2010	489143.470207303
2011	568765.943156169
2012	660846.793413705
2013	554838.218493485
2014	887691.644726246
2015	826758.476877978
2016	648178.770251729
2017	809270.501974708
2018	415869.621764244
2019	565575.724833585
2020	522333.988316265
2021	490952.887761393