Year	current US$
1970	66929998.98269774
1971	125900000.06929022
1972	34060000.3898144
1973	83710000.30636787
1974	9349999.593570797
1975	49890000.30048193
1976	71300000.0249595
1977	45980000.210925885
1978	25989999.808371052
1979	22910000.192001473
1980	51890000.18686062
1981	109689999.80390067
1982	234260000.96090138
1983	331369999.3770571
1984	531060000.5909805
1985	645709996.5065718
1986	1317799988.0537395
1987	1637790007.6694787
1988	2114860005.3302937
1989	1818029977.936298
1990	1847570016.6877353
1991	1848420007.4356048
1992	2157709998.1624627
1993	1604499988.0399551
1994	1624249974.824488
1995	676680008.0630926
1996	680900004.5228747
1997	382149998.03155667
1998	605519997.9748579
1999	358550002.9996039
2000	495049991.8647107
2001	235470003.86379665
2002	853229995.8467482
2003	853470007.2873384
2004	459330003.723502
2005	2044210017.174482
2006	1855449962.03482
2007	1097420002.6057658
2008	1588819981.7165735
2009	662930010.8626485
2010	601120000.2990663
2011	1044220012.8547852
2012	284049999.9951571
2013	314420002.41205114
2014	357110000.7519126
2015	515629998.6485388
2016	542289997.3653252
2017	783379991.4121623
2018	652999998.7985942
2019	518969998.97249055
2020	631040005.6075304
2021	1251030025.7597122
2022	1265209992.6602097