Year	current US$
1960	568140012.839809
1961	632909995.8781149
1962	598740015.268326
1963	675330015.478656
1964	498449999.867007
1965	611040007.412434
1966	655010007.688776
1967	607309991.793707
1968	559630008.690059
1969	654309993.617237
1970	601930010.87755
1971	665860008.727759
1972	766749992.97969
1973	835119989.249855
1974	875229991.81971
1975	1333660008.52175
1976	1571900033.60622
1977	1984750022.1226401
1978	1702369989.83473
1979	2273140033.20783
1980	2137219988.6106
1981	2246239975.29596
1982	1907009994.8607402
1983	2425109978.53242
1984	2299300015.8798
1985	2925620021.96535
1986	3168899988.42031
1987	2507760059.53178
1988	2314370065.1601
1989	2398520007.78541
1990	4478930046.2752495
1991	6883549931.1313
1992	5824180080.69135
1993	4591210089.55501
1994	5369840078.6817
1995	6415029872.93899
1996	5899770029.50013
1997	4227879983.48475
1998	5416969959.959391
1999	4813600056.14721
2000	4788500026.915222
2001	4109809964.228417
2002	4025050000.859425
2003	4689109959.241004
2004	5935860082.693402
2005	424410001.87397
2006	487909995.287657
2007	356129997.730255
2008	597139999.8664861
2009	579070009.231567
2010	600140007.019043
2011	381799997.32971203
2012	290989999.5327
2013	214099997.401237
2014	180960007.429123
2015	127280002.35557601
2016	247960003.55482098
2017	205959998.130798
2018	94269998.550415
2019	152280002.593994
2020	198850004.196167
2021	129680000.305176