Year	current US$
1970	72570000.13813378
1971	80840001.41359866
1972	102180000.55477025
1973	121290002.19516458
1974	143289998.03960302
1975	168170001.10633653
1976	151189999.2246181
1977	172690000.8954113
1978	210950007.21141678
1979	269399998.8660211
1980	276640005.24952984
1981	219339999.22126576
1982	184089996.82590383
1983	150959999.0509451
1984	139450002.27913263
1985	177599998.9248813
1986	233290005.7099763
1987	229940002.89216673
1988	233829994.73437715
1989	179849998.39961526
1990	269779999.11457294
1991	167479999.07657492
1992	215159999.62948266
1993	173829999.782145
1994	171929999.921471
1995	154099999.6680766
1996	163000000.713393
1997	167780003.02240255
1998	191890001.7309934
1999	129859999.7814744
2000	153450000.12964007
2001	187409998.02388242
2002	252129996.82128435
2003	959220004.8174714
2004	457249987.0285393
2005	349450000.1743434
2006	478960010.1206452
2007	492340006.1484429
2008	540800002.4501239
2009	613740006.3928218
2010	1083549989.8698182
2011	723249999.9068675
2012	444220003.2416735
2013	495830000.1956519
2014	474249998.31616926
2015	377369996.3539837
2016	398099998.30275756
2017	401660004.7964608
2018	421809998.1080742
2019	382450004.0616836
2020	415740003.0624126
2021	476840000.16562575
2022	410899994.7048723