Year current US$ 1961 29999.999329447703 1962 90000.0035762787 1963 170000.00178813902 1964 209999.993443489 1965 230000.004172325 1966 419999.986886978 1967 779999.971389771 1968 1090000.0333786 1969 509999.99046325695 1970 920000.016689301 1971 1059999.9427795399 1972 2329999.92370605 1973 2990000.00953674 1974 5289999.96185303 1975 11510000.2288818 1976 9920000.07629395 1977 17290000.915527303 1978 15600000.3814697 1979 26100000.3814697 1980 21010000.2288818 1981 21579999.9237061 1982 21379999.1607666 1983 23030000.6866455 1984 16280000.6866455 1985 17629999.1607666 1986 22079999.9237061 1987 33169998.168945298 1988 28260000.2288818 1989 27209999.084472697 1990 35909999.8474121 1991 42459999.0844727 1992 45689998.626709 1993 48540000.9155273 1994 44250000 1995 38419998.1689453 1996 32459999.084472697 1997 28110000.6103516 1998 32860000.6103516 1999 24659999.8474121 2000 28850000.3814697 2001 40810001.373291 2002 38040000.9155273 2003 33270000.4577637 2004 30379999.1607666 2005 43229999.5422363 2006 48250000 2007 33150001.5258789 2008 38650001.5258789 2009 65849998.474121094 2010 124440002.441406 2011 88800003.0517578 2012 117290000.915527 2013 113010002.13623 2014 93989997.8637695 2015 93720001.2207031 2016 88639999.3896484 2017 136220001.220703 2018 128100006.103516 2019 123720001.22070299 2020 166770004.272461 2021 84419998.1689453 2022 126269996.64306599