Year current US$ 1960 1080000.04291534 1961 990000.009536743 1962 479999.989271164 1963 629999.995231628 1964 930000.007152557 1965 1500000 1966 879999.995231628 1967 2160000.08583069 1968 2420000.07629395 1969 1230000.01907349 1970 3980000.01907349 1971 7710000.03814697 1972 8699999.80926514 1973 7889999.8664856 1974 8380000.11444092 1975 7219999.79019165 1976 6849999.90463257 1977 8640000.34332275 1978 9180000.30517578 1979 10100000.3814697 1980 8500000 1981 7510000.228881841 1982 6000000 1983 4119999.88555908 1984 2000000 1985 1200000.04768372 1986 3130000.1144409203 1987 2720000.02861023 1988 3009999.99046326 1989 1840000.0333786 1990 959999.978542328 1991 439999.997615814 1992 829999.983310699 1993 589999.973773956 1994 19999.9995529652 1995 1259999.9904632599 1996 750000 1997 629999.995231628 1998 379999.99523162795 1999 239999.994635582 2000 430000.00715255697 2001 90000.0035762787 2002 29999.999329447703 2003 50000.0007450581 2004 19999.9995529652 2005 19999.9995529652 2006 19999.9995529652 2007 -860000.014305115 2008 70000.0002980232 2009 59999.9986588955 2010 39999.9991059303 2011 70000.0002980232 2012 1809999.9427795399 2013 479999.989271164 2014 629999.995231628 2015 490000.009536743 2016 170000.00178813902 2017 439999.997615814