Year	current US$
1970	6589999.951422214
1971	10640000.002458703
1972	9419999.86208975
1973	14140000.224113468
1974	14850000.105798237
1975	32420000.00551346
1976	29899999.97615818
1977	28149999.586865295
1978	36340000.18425284
1979	104460000.47028062
1980	104319997.86011878
1981	132410001.99690455
1982	105439995.97802758
1983	79799998.86639422
1984	73519999.37184156
1985	92250002.04890968
1986	78980000.2910197
1987	71110001.12071633
1988	108590002.14934358
1989	99320000.70810317
1990	95429997.93775374
1991	151420000.42833376
1992	71929999.0255385
1993	73440000.84884463
1994	93829998.96071859
1995	51850000.109523475
1996	49300000.30808153
1997	64489998.91057609
1998	71839999.04803929
1999	53110000.02361834
2000	54119999.55959617
2001	60549999.65615564
2002	98950001.07213864
2003	260749996.46656215
2004	528020006.7050757
2005	1602620027.273893
2006	565830004.8112872
2007	359959997.34848714
2008	1044259978.2347678
2009	576920012.4740596
2010	402039998.71201843
2011	561599998.366088
2012	496390001.7291307
2013	876049986.1612911
2014	949499992.3203139
2015	1243250003.5539274
2016	1589610015.163197
2017	1603039990.8237164
2018	1464499999.81746
2019	1615730007.1008506
2020	1456059997.2065544
2021	916069991.6630988
2022	492690001.04814816