Year current US$ 1963 70000.0002980232 1964 660000.026226044 1965 920000.016689301 1966 490000.009536743 1967 -150000.005960464 1968 -209999.993443489 1969 109999.999403954 1970 730000.019073486 1971 159999.99642372102 1972 400000.00596046395 1973 319999.99284744303 1974 579999.983310699 1975 209999.993443489 1976 250000 1977 449999.988079071 1978 670000.016689301 1979 699999.988079071 1980 610000.014305115 1981 319999.99284744303 1982 379999.99523162795 1983 610000.014305115 1984 680000.007152557 1985 419999.986886978 1986 1070000.05245209 1987 1379999.99523163 1988 1600000.02384186 1989 1409999.9666214 1990 2069999.9332428002 1991 1610000.01430511 1992 2210000.03814697 1993 1879999.99523163 1994 2619999.8855590797 1995 2349999.90463257 1996 2289999.96185303 1997 1830000.04291534 1998 2720000.02861023 1999 1519999.98092651 2000 1809999.9427795399 2001 1909999.9666214 2002 2789999.96185303 2003 4159999.8474121103 2004 3319999.9332428 2005 4489999.771118159 2006 3980000.01907349 2007 3619999.8855590797 2008 2130000.1144409203 2009 4019999.98092651 2010 4519999.98092651 2011 4019999.98092651 2012 3470000.02861023 2013 4280000.20980835 2014 3660000.08583069 2015 3210000.03814697 2016 3720000.02861023 2017 2930000.0667572 2018 4110000.1335143996 2019 3549999.95231628 2020 3660000.08583069 2021 2940000.05722046 2022 3509999.99046326