Year current US$ 1964 100000.00149011599 1966 9999.99977648258 1968 90000.0035762787 1969 300000.011920929 1970 140000.000596046 1971 100000.00149011599 1972 239999.994635582 1973 340000.00357627904 1974 300000.011920929 1975 330000.013113022 1976 280000.001192093 1977 109999.999403954 1978 189999.99761581398 1979 250000 1980 150000.005960464 1981 319999.99284744303 1982 589999.973773956 1983 540000.021457672 1984 589999.973773956 1985 949999.988079071 1986 500000 1987 930000.007152557 1988 1000000 1989 439999.997615814 1990 219999.998807907 1991 800000.011920929 1992 750000 1993 829999.983310699 1994 1259999.9904632599 1995 1909999.9666214 1996 6289999.96185303 1997 7940000.05722046 1998 2539999.96185303 1999 2220000.02861023 2000 5659999.84741211 2001 3869999.8855590797 2002 12470000.2670288 2003 17100000.3814697 2004 18000000 2005 19290000.915527303 2006 20709999.084472697 2007 23329999.9237061 2008 34880001.0681152 2009 28049999.237060502 2010 28299999.237060502 2011 31819999.6948242 2012 32569999.694824196 2013 44909999.8474121 2014 35939998.626709 2015 24350000.3814697 2016 18459999.084472697 2017 28819999.6948242 2018 32750000 2019 24379999.1607666 2020 31260000.2288818 2021 30430000.3051758 2022 28170000.0762939