Year	current US$
1970	195099996.7157841
1971	210299997.68733975
1972	186129997.25341797
1973	179509999.2081523
1974	224890000.04529956
1975	288129999.18684363
1976	282370001.4203787
1977	218219999.6039272
1978	249540003.16932797
1979	303850001.0073184
1980	425650003.1501055
1981	489919999.6683746
1982	441599994.1937624
1983	399789999.5446205
1984	410140000.76055527
1985	414490001.3562291
1986	617999990.6513838
1987	694679997.7272743
1988	694779993.9829856
1989	762009999.0796294
1990	1113410003.609955
1991	1236350010.7564034
1992	1399110015.2824082
1993	1298839995.8573275
1994	1482319999.4247417
1995	1408039991.4998567
1996	1200910005.6476886
1997	887310008.7624036
1998	929210004.0260702
1999	717580003.3621491
2000	588309999.3262438
2001	487139995.9195404
2002	443800001.40145403
2003	564939999.4872503
2004	758529985.3086463
2005	786350001.8548224
2006	877729998.1508403
2007	954739982.95702
2008	1189659991.7169662
2009	1129710004.4097764
2010	1554149990.1916842
2011	1606220012.694597
2012	985799995.7911665
2013	1942780002.806335
2014	1532000002.4400642
2015	1169459987.7689037
2016	1631620014.33596
2017	2240350002.3148966
2018	2006130011.1096354
2019	1857009990.3661757
2020	2923379977.570847
2021	2642669984.4840918
2022	2318690007.3792796