Year current US$ 1991 70000.0002980232 1992 50000.0007450581 1993 50000.0007450581 1994 50000.0007450581 1995 59999.9986588955 1996 39999.9991059303 1997 50000.0007450581 1998 119999.997317791 1999 90000.0035762787 2000 219999.998807907 2001 29999.999329447703 2003 9999.99977648258 2010 39999.9991059303 2011 560000.002384186 2012 500000 2013 9999.99977648258 2014 100000.00149011599 2015 39999.9991059303 2016 239999.994635582 2017 740000.009536743 2018 1460000.03814697 2019 2029999.97138977 2020 5090000.15258789 2021 4380000.11444092 2022 6889999.8664856