Year	current US$
1970	175190000.96060327
1971	170989999.38741285
1972	233969996.1934238
1973	236180000.13753733
1974	351589992.7690621
1975	386130001.7349421
1976	290100005.7104973
1977	310009994.6018314
1978	361590002.91116583
1979	396539999.7234344
1980	410180009.1248005
1981	445019997.0416728
1982	432980012.4671308
1983	400070011.95102894
1984	441730003.5096701
1985	351860006.7738446
1986	346750006.7315998
1987	368139993.6191735
1988	423720005.942509
1989	511230003.05704767
1990	517119987.57906264
1991	488510009.8941477
1992	483279993.03676206
1993	451219997.8437278
1994	505259999.0423771
1995	555250001.462177
1996	548850000.5677346
1997	489820007.24226266
1998	504049991.3804232
1999	364360005.3396075
2000	445880003.35358053
2001	382420001.42484903
2002	426850004.43644786
2003	522370006.87606674
2004	652250001.6670676
2005	777680007.8302616
2006	850879991.9765435
2007	1092950014.429168
2008	1241319990.038872
2009	1267310016.516597
2010	1709190008.299425
2011	2074659990.0163705
2012	2402290029.561148
2013	2117660017.6170473
2014	1823460003.1357262
2015	1531400012.6607711
2016	1143120006.1626742
2017	1289419988.0529194
2018	1301710011.4636126
2019	1195060022.0430646
2020	1096839986.5888062
2021	1710919961.838051
2022	1424259997.8111682