Year	current US$
1960	30939958.5040166
1961	44239946.464021415
1962	55999932.80002688
1963	56139923.78403049
1964	69859927.2560291
1965	50301993.31920268
1966	58099990.20000392
1967	60479975.80800968
1968	61697961.88081525
1969	72457142.85714285
1970	54000013.71428572
1971	65932001.39495253
1972	85671836.53587866
1973	136273183.15688926
1974	186973778.55440825
1975	191088160.127085
1976	192486094.9960286
1977	295217382.0289855
1978	316988817.679558
1979	445931808.9238845
1980	534102368.09005946
1981	477996187.19086874
1982	526993563.685709
1983	533432443.47680455
1984	481494597.2830074
1985	169206456.50080258
1986	273465478.01527894
1987	315205176.1369781
1988	230343008.33119994
1989	490450254.2955327
1990	346105374.4903933
2013	3560952724.93739
2014	3904049173.1576357
2015	3987254873.4988966
2016	4194168699.9987206
2017	4624016482.908532
2018	5122000005.443726
2019	5423000000
2020	5818000000
2021	6544000009.831403
2022	8181999999.967875
2023	8956659370.116697