Year current US$ 1991 330000.013113022 1992 250000 1993 250000 1994 219999.998807907 1995 310000.002384186 1996 239999.994635582 1997 209999.993443489 1998 189999.99761581398 1999 9999.99977648258 2001 29999.999329447703 2002 19999.9995529652 2003 19999.9995529652 2004 50000.0007450581 2005 109999.999403954 2006 70000.0002980232 2007 159999.99642372102 2008 39999.9991059303 2009 159999.99642372102 2010 1149999.97615814 2011 589999.973773956 2012 839999.973773956 2013 90000.0035762787 2014 500000 2015 529999.971389771 2016 550000.011920929 2017 860000.014305115 2018 1350000.02384186 2019 829999.983310699 2020 1950000.04768372 2021 2289999.96185303 2022 189999.99761581398