Year current US$ 1974 200000.00298023198 1975 219999.998807907 1976 280000.001192093 1977 100000.00149011599 1978 319999.99284744303 1979 129999.995231628 1980 540000.021457672 1981 689999.997615814 1982 379999.99523162795 1983 219999.998807907 1984 230000.004172325 1985 259999.990463257 1986 3269999.98092651 1987 660000.026226044 1988 769999.980926514 1989 280000.001192093 1990 300000.011920929 1991 170000.00178813902 1992 209999.993443489 1993 289999.99165535 1994 250000 1995 109999.999403954 1996 39999.9991059303 1997 59999.9986588955 1998 29999.999329447703 1999 150000.005960464 2002 50000.0007450581 2003 90000.0035762787 2004 90000.0035762787 2005 140000.000596046 2006 109999.999403954 2007 129999.995231628 2009 79999.9982118607 2010 109999.999403954 2011 19999.9995529652 2012 37370.6109821796 2013 41363.999247551 2014 45214.4183218479 2016 89852.3330688477 2017 71268.7894701958 2019 190659.999847412 2020 134090.33417701698 2021 44577.818363905004 2022 27848.9701449871