Year	current US$
1970	48569999.6948242
1971	41420001.9836426
1972	53740001.6784668
1973	54880001.0681152
1974	99790000.9155273
1975	124639999.38964799
1976	99080001.8310547
1977	126489997.86377
1978	165550003.05175802
1979	209100006.10351598
1980	244489990.234375
1981	212959991.455078
1982	203090011.59668
1983	243699996.94824198
1984	242600006.10351598
1985	276970001.220703
1986	324059997.558594
1987	363510009.765625
1988	398440002.441406
1989	499340026.855469
1990	582130004.882813
1991	583989990.234375
1992	736929992.675781
1993	792280029.296875
1994	794150024.414063
1995	793669982.910156
1996	670229980.46875
1997	511299987.792969
1998	478190002.441406
1999	563090026.855469
2000	574419982.910156
2001	599989990.234375
2002	566330017.089844
2003	629529968.261719
2004	651049987.792969
2005	706419982.910156
2006	731130004.882813
2007	973910034.179688
2008	977229980.46875
2009	1077570068.35938
2010	1036709960.9375
2011	1080710083.00781
2012	1135706298.82813
2013	1224989257.8125
2014	1288329711.91406
2015	1389392211.91406
2016	1434254028.32031
2017	1511022460.9375
2018	1487503173.82813
2019	995570007.324219
2020	961478027.34375
2021	887682983.398438
2022	798677003.3836366