Year current US$ 1992 19999.9995529652 1993 9999.99977648258 1995 19999.9995529652 1996 29999.999329447703 1997 29999.999329447703 1998 109999.999403954 1999 119999.997317791 2000 70000.0002980232 2001 59999.9986588955 2003 59999.9986588955 2005 119999.997317791 2006 39999.9991059303 2007 100000.00149011599 2008 9999.99977648258 2009 39999.9991059303 2010 230000.004172325 2011 9829999.92370605 2012 29999.999329447703 2013 140000.000596046 2015 9999.99977648258 2016 379999.99523162795 2017 360000.01430511504 2018 1149999.97615814 2019 720000.028610229 2020 490000.009536743 2021 140000.000596046 2022 439999.997615814