Year	current US$
1975	19999.9995529652
1976	9999.99977648258
1977	9999.99977648258
1982	9999.99977648258
1983	19999.9995529652
1984	90000.0035762787
1985	29999.999329447703
1986	280000.001192093
1987	129999.995231628
1988	140000.000596046
1989	140000.000596046
1990	850000.023841858
1991	970000.028610229
1992	790000.021457672
1993	629999.995231628
1994	3109999.89509583
1995	8199999.80926514
1996	13729999.5422363
1997	15890000.3433228
1998	16709999.0844727
1999	16760000.2288818
2000	21629999.1607666
2001	21090000.1525879
2002	25299999.237060502
2003	33380001.068115197
2004	42439998.626709
2005	44099998.4741211
2006	50630001.0681152
2007	58939998.626709
2008	72669998.1689453
2009	52470001.220703095
2010	49229999.5422363
2011	49520000.4577637
2012	42659999.8474121
2013	45770000.4577637
2014	48270000.4577637
2015	38779998.779296905
2016	39229999.5422363
2017	40619998.9318848
2018	44020000.4577637
2019	44479999.5422363
2020	45220001.220703095
2021	47970001.220703095
2022	43319999.6948242