Year current US$ 1965 319999.99284744303 1966 629999.995231628 1967 340000.00357627904 1968 310000.002384186 1969 300000.011920929 1970 1549999.95231628 1971 1029999.97138977 1972 2000000 1973 1850000.02384186 1974 639999.985694885 1975 430000.00715255697 1976 170000.00178813902 1977 70000.0002980232 1979 4789999.96185303 1980 4539999.96185303 1981 3480000.01907349 1982 3359999.89509583 1983 2269999.98092651 1984 1659999.9666214 1985 2329999.92370605 1986 1200000.04768372 1987 1639999.98569489 1988 2140000.10490417 1989 3880000.1144409203 1990 4329999.92370605 1991 4800000.19073486 1992 7710000.03814697 1993 10399999.6185303 1994 14310000.4196167 1995 25829999.9237061 1996 28239999.7711182 1997 23950000.762939498 1998 21909999.8474121 1999 16739999.7711182 2000 25690000.5340576 2001 15750000 2002 21610000.6103516 2003 19879999.1607666 2004 25010000.2288818 2005 28389999.3896484 2006 33099998.4741211 2007 27680000.3051758 2008 39029998.779296905 2009 48500000 2010 53909999.8474121 2011 71550003.0517578 2012 100930000.30517599 2013 71949996.9482422 2014 79059997.55859381 2015 49180000.3051758 2016 57750000 2017 58369998.9318848 2018 51779998.779296905 2019 43869998.9318848 2020 39049999.237060495 2021 78220001.2207031 2022 69290000.9155273