Year	current US$
1960	22945943.781622488
1961	30659933.976026412
1962	26039938.064024776
1963	34299919.08003237
1964	36679918.12803275
1965	41804010.15839594
1966	38499998.04000079
1967	37099985.160005935
1968	42699969.48001221
1969	48985714.28571428
1970	37142857.14285714
1971	43907884.87657672
1972	65614884.5471965
1973	70524571.5195415
1974	81652120.09531374
1975	88594086.73550437
1976	81000763.7807784
1977	101014492.75362319
1978	145994475.13812155
1979	143504008.39895013
1980	200271074.3893541
1981	173525712.1116043
1982	201101592.52853686
1983	173400620.33160275
1984	115004196.81752637
1985	55477537.07865168
1986	64782760.6451115
1987	67562031.21658155
1988	50072045.81794243
1989	83929436.05123399
1990	89748800.17615384
2013	942600662.4436072
2014	1097727146.9676898
2015	1037964069.9996551
2016	1067190800.0009539
2017	994339299.9983549
2018	1119000001.1897714
2019	1131000000
2020	1178000000
2021	1532000002.3003945
2022	1804043999.991413
2023	2089548840.0286546