Year	current US$
1960	233727366.3106344
1961	250773878.92466915
1962	244716471.75571314
1963	261388756.40181255
1964	282107125.47306585
1965	302344746.6253434
1966	318473564.54404664
1967	291551382.62115085
1968	333405679.6846807
1969	287295984.72882277
1970	307733964.47740024
1971	276614129.95664746
1972	393354818.44615394
1973	414860516.98614734
1974	493122149.7956159
1975	842872529.5584166
1976	853950141.2790551
1977	793164028.5344388
1978	682300105.9666698
1979	965090379.5196317
1980	835252955.9710593
1981	846359844.5116327
1982	850918041.933913
1983	607773608.3779453
1984	642255285.9509414
1985	814482087.1868755
1986	1187405349.11585
1987	1467621480.2111166
1988	1237925348.4809322
1989	1348030912.5750988
1990	1364826502.2063742
1991	1356464035.7673764
1992	1332013514.4646962
1993	1412101190.8144827
1994	893136346.2386853
1995	1231749328.605516
1996	1202858525.9579356
1997	1099029816.1473515
1998	1160075303.443235
1999	1145571771.6219099
2000	988522227.341865
2001	1057679825.1875433
2002	937511289.0848773
2003	1358371411.8779345
2004	1431089302.8857057
2005	1671214917.268178
2006	1566953881.1385832
2007	1713719472.2248967
2008	2475282595.321555
2009	2600733326.2238708
2010	2570585984.685489
2011	2306426175.765656
2012	2489775177.3673997
2013	2596564513.8859224
2014	2646648303.9350524
2015	2538694692.7427
2016	2744474501.8151746
2017	3145712161.272559
2018	3464620166.86404
2019	3486322930.74853
2020	3961378456.3785563
2021	4279829966.1240563
2022	4513292531.541726
2023	5076820924.811624