Year	current US$
1973	1009999.99046326
1974	15890000.3433228
1975	2180000.0667572
1976	419999.986886978
1977	839999.973773956
1978	589999.973773956
1979	2630000.1144409203
1980	9229999.54223633
1981	10229999.5422363
1982	13960000.038146999
1983	11119999.8855591
1984	14970000.2670288
1985	17110000.6103516
1986	20399999.6185303
1987	53229999.5422363
1988	47909999.8474121
1989	56220001.220703095
1990	60229999.5422363
1991	62180000.3051758
1992	61819999.6948242
1993	52659999.8474121
1994	29729999.5422363
1995	33400001.5258789
1996	30819999.6948242
1997	23889999.3896484
1998	22159999.8474121
1999	20239999.7711182
2000	21270000.4577637
2001	13239999.7711182
2002	20149999.6185303
2003	20930000.3051758
2004	29149999.6185303
2005	38130001.0681152
2006	26209999.084472697
2007	32970001.220703095
2008	33630001.0681152
2009	33509998.321533203
2010	85069999.6948242
2011	24549999.237060502
2012	14449999.8092651
2013	4630000.11444092
2014	519999.980926514
2015	7489999.771118159
2016	6920000.07629395
2017	6929999.82833862
2018	6719999.79019165
2019	62750000
2020	6090000.15258789
2021	12770000.4577637
2022	11180000.3051758