Year	current US$
1987	9999.99977648258
2000	159999.99642372102
2014	29999.999329447703
2016	879999.995231628
2017	1220000.02861023
2018	930000.007152557
2019	560000.002384186
2020	119999.997317791
2022	319999.99284744303