Year current US$ 1991 59999.9986588955 1992 39999.9991059303 1993 39999.9991059303 1994 70000.0002980232 1995 59999.9986588955 1996 50000.0007450581 1997 39999.9991059303 2003 59999.9986588955 2006 9999.99977648258 2012 79999.9982118607 2013 90000.0035762787 2014 100000.00149011599 2015 170000.00178813902 2016 129999.995231628 2017 79999.9982118607 2018 209999.993443489 2019 109999.999403954 2020 289999.99165535 2021 1000000 2022 1250000