Year	current US$
1970	156933437.17251095
1971	164349875.6713655
1972	195477437.30254132
1973	207494726.12672547
1974	236687909.56226972
1975	233650187.2805532
1976	238101795.93205693
1977	253989315.73681068
1978	270066759.60639197
1979	272681330.9049363
1981	282737027.95525753
1982	325929163.5727646
1983	332226536.6038245
1984	304991794.1640674
1985	391051067.69979864
1986	303239405.64731413
1987	369090986.634642
1988	360769305.2868078
1989	482530741.45159227
1990	550991946.4475002
1991	576235667.6485895
1992	518428443.59276813
1993	529183587.2474962
1994	544883832.2071627
1995	625649957.9321146
1996	644624123.9708611
1997	672897690.1128213
1998	558082744.582889
1999	568609661.9984583
2000	355465780.2362631
2001	386102418.9103761
2002	370501452.35594887
2003	398411839.57716
2004	478546650.22611725
2005	549220888.1600063
2006	591466711.5421836
2007	637010779.5641237
2008	867770692.1601808
2009	777078484.853336
2010	785888453.3166212
2011	920270665.6496226
2012	864358609.1434164
2013	891377542.5484045
2014	876914984.2973329
2015	854032492.4355608
2016	913815168.6261023
2017	1030891314.0164133
2018	1078487388.6080303
2019	1005309657.8336546
2020	932960487.8075519
2021	1160702246.0930588
2022	1157299836.5279133
2023	1309217942.3718376