Year current US$ 1978 39999.9991059303 1980 19999.9995529652 1981 209999.993443489 1982 529999.971389771 1983 759999.990463257 1984 250000 1985 310000.002384186 1986 50000.0007450581 1988 50000.0007450581 1989 50000.0007450581 1990 29999.999329447703 1991 90000.0035762787 1992 140000.000596046 1993 90000.0035762787 1994 70000.0002980232 1995 70000.0002980232 1999 19999.9995529652 2002 9999.99977648258 2003 9999.99977648258 2004 159999.99642372102 2005 680000.007152557 2006 200000.00298023198 2007 469999.998807907 2008 230000.004172325 2009 289999.99165535 2010 239999.994635582 2011 670000.016689301 2017 159999.99642372102 2018 189999.99761581398 2019 270000.010728836 2020 419999.986886978 2021 219999.998807907 2022 150000.005960464