Year current US$ 1977 9999.99977648258 1983 100000.00149011599 1984 19999.9995529652 1985 29999.999329447703 1993 29999.999329447703 1996 59999.9986588955 1999 19999.9995529652 2009 990000.009536743 2010 1850000.02384186 2011 5170000.07629395 2012 3720000.02861023 2013 2470000.02861023 2014 1840000.0333786 2015 50000.0007450581 2016 39999.9991059303 2017 14560000.4196167 2018 4110000.1335143996 2019 9729999.54223633 2021 7510000.228881841 2022 3460000.03814697