Year	current US$
1970	22366.1050706566
1971	18698.3156974055
1972	19680.8579724258
1973	35196.373555681
1974	39097.1407532117
1975	55977.6
1976	45604.8
1977	78274.9756097562
1978	76090.9718574109
1979	83263.0795497186
1980	95034.4102325582
1981	85821.12
1982	184602.133333333
1983	60174.1561049336
1984	35737.7361702128
1985	21963.8571428572
1986	21384
1987	21152.0571428572
1988	20495.8285714286
1989	20006.4857142857
1990	68913.9428571428
1991	81026.0210526316
1992	74774.7830329855
1993	57305.4367512529
1994	65125.4092433783
1995	83944.1843819462
1996	61000.3170638106
1997	86651.3067721752
1998	73251.295256481
1999	61399.1391570085
2000	59764.97295096
2001	59955.8089655175
2002	54093.0584039409
2003	58013.2114654585
2004	60574.2896148417
2005	59668.0492408384
2006	86312.3180160855
2007	89583.5433096705
2008	95789.1099946527
2009	87667.4419899665
2010	201615.581350747
2011	174162.503310983
2012	172409.655401223
2013	233459.328236701
2014	298706.9443611
2015	229528.157716649
2016	314318.463957329
2017	268289.757113369
2018	180090.905596652
2019	164294.995708123
2020	223671.43715979
2021	174770.769394375