Year	current US$
1968	9999.99977648258
1975	59999.9986588955
1976	270000.010728836
1977	280000.001192093
1978	39999.9991059303
1979	39999.9991059303
1980	349999.99403953605
1981	9999.99977648258
1982	-29999.999329447703
1983	-19999.9995529652
1984	-29999.999329447703
1986	9999.99977648258
1987	29999.999329447703
1988	29999.999329447703
1989	9999.99977648258
1991	19999.9995529652
1993	19999.9995529652
1999	19999.9995529652
2003	100000.00149011599
2007	140000.000596046
2012	39999.9991059303
2013	50000.0007450581
2015	59999.9986588955
2016	29999.999329447703
2017	319999.99284744303
2018	140000.000596046
2019	100000.00149011599
2020	219999.998807907
2021	230000.004172325
2022	159999.99642372102