Year	current US$
1971	470000.00625848724
1972	530000.016093254
1973	1050000.0398606057
1974	660000.0150501733
1975	1010000.0165402896
1976	1559999.9669939303
1977	2349999.9344348856
1978	1349999.9605119254
1979	1779999.9862909364
1980	3189999.8690932966
1981	4320000.067353246
1982	8130000.028759249
1983	8320000.099018212
1984	15849999.681115098
1985	18280000.18559397
1986	14239999.746903777
1987	24199999.909847945
1988	32849999.962374564
1989	36210000.15735624
1990	43659999.666735485
1991	49529998.36951495
1992	33560000.52392481
1993	18640000.48488378
1994	7819999.929517504
1995	15750000.305473804
1996	10569999.925792221
1997	6560000.227764251
1998	5529999.833554033
1999	3389999.8441338553
2000	8209999.928250914
2001	10560000.01542271
2002	10080000.191926964
2003	10029999.837279323
2004	12940000.20995736
2005	24699999.885633565
2006	25010000.238195017
2007	23029999.939724814
2008	21660000.018775474
2009	33120000.55983658
2010	54160000.67628913
2011	37799999.76791443
2012	32689999.638125267
2013	36110000.54702166
2014	65529998.89478091
2015	23360000.319778938
2016	20959999.974817082
2017	20109999.343752824
2018	18740000.17344948
2019	10359999.57844615
2020	14429999.500513054
2021	11370000.073686196
2022	14949999.809265137