Year	current US$
1970	74869998.65993853
1971	92529998.48127365
1972	79779999.88943338
1973	140619998.8704175
1974	162709999.5017052
1975	179349999.53955415
1976	151929999.5712937
1977	210029995.009303
1978	484179998.21342474
1979	858079992.6035116
1980	815230004.899203
1981	731889992.4289433
1982	850119994.1877282
1983	740289996.7115366
1984	666350005.4702159
1985	847539993.9380593
1986	1403219993.3379886
1987	1608140007.9429142
1988	2403729967.437685
1989	2229470010.2005167
1990	1924469989.605249
1991	2107530012.4324882
1992	1835809995.2638142
1993	2120789987.9664173
1994	2898169999.4225054
1995	3065950007.084757
1996	2414369984.0866017
1997	1818810004.021973
1998	2433930028.265342
1999	2255069969.5348735
2000	2450399973.869324
2001	1983050006.516277
2002	1808519990.693778
2003	1735009991.7985492
2004	1647870009.3198571
2005	2107370030.0566843
2006	3547409992.2124276
2007	2229239979.0231133
2008	1736509998.4984837
2009	2425999980.8073044
2010	3515879966.6762347
2011	3689819989.3832207
2012	4019700014.032423
2013	6357960083.097225
2014	3084350029.4387336
2015	3083950030.356644
2016	3368549956.2025065
2017	4054680047.5269585
2018	3886380069.2856374
2019	4436150037.221611
2020	5705750005.900861
2021	5636140030.801294
2022	5191090012.812986