Year current US$ 1978 39999.9991059303 1979 90000.0035762787 1980 209999.993443489 1981 140000.000596046 1982 189999.99761581398 1983 70000.0002980232 1984 810000.002384186 1985 219999.998807907 1986 2539999.96185303 1987 879999.995231628 1988 560000.002384186 1989 419999.986886978 1990 5170000.07629395 1991 750000 1992 860000.014305115 1993 660000.026226044 1994 180000.00715255702 1995 100000.00149011599 1996 -39999.9991059303 1998 -250000 1999 -180000.00715255702 2000 -159999.99642372102 2005 550000.011920929 2006 2019999.9809265102 2010 1019999.98092651 2012 9999.99977648258 2014 -230000.004172325 2015 -70000.0002980232 2016 -1309999.9427795399 2017 9999.99977648258