Year	current US$
1971	29999.999329447703
1973	620000.004768372
1974	2150000.09536743
1975	1620000.00476837
1977	2119999.8855590797
1978	4929999.82833862
1979	4139999.8664856004
1980	4679999.82833862
1981	5610000.1335144
1982	4500000
1983	4500000
1984	4500000
1986	1000000
1987	2000000
1988	2000000
1990	4500000
1992	1000000
1993	67709999.0844727
1994	154149993.89648402
1995	148289993.28613302
1996	157490005.493164
1997	123510002.13623
1998	168809997.55859402
1999	149869995.117188
2000	178020004.272461
2001	284700012.207031
2002	226669998.168945
2003	316959991.455078
2004	263519989.013672
2005	349739990.234375
2006	126190002.441406
2007	126669998.168945
2008	115819999.69482401
2009	136600006.10351598
2010	162309997.55859402
2011	133410003.662109
2012	135960006.71386698
2013	81309997.55859381
2014	84190002.44140631
2015	93919998.1689453
2016	66819999.694824204
2017	79190002.44140631
2018	84239997.8637695
2019	265950012.207031
2020	61310001.373291
2021	43950000.762939505
2022	54709999.0844727