Year current US$ 1960 920000.016689301 1961 910000.026226044 1962 5880000.11444092 1963 5369999.88555908 1964 20559999.4659424 1965 12069999.6948242 1966 26750000 1967 40130001.0681152 1968 13899999.6185303 1969 13220000.2670288 1970 5250000 1971 12659999.8474121 1972 9770000.45776367 1973 13329999.923706101 1974 18799999.237060502 1975 21250000 1976 16379999.160766602 1977 18860000.6103516 1978 24920000.0762939 1979 59650001.5258789 1980 43119998.9318848 1981 37909999.8474121 1982 21520000.4577637 1983 20430000.3051758 1984 19510000.2288818 1985 22799999.237060502 1986 43970001.220703095 1987 38500000 1988 29559999.4659424 1989 30569999.6948242 1990 42900001.5258789 1991 66830001.8310547 1992 99430000.3051758 1993 40459999.0844727 1994 68860000.6103516 1995 76470001.2207031 1996 60650001.5258789 1997 93709999.0844727 1998 33409999.847412102 1999 63580001.8310547 2000 111410003.662109 2001 55759998.3215332 2002 28129999.1607666 2003 65889999.38964839 2004 282549987.792969 2005 165729995.727539 2006 86769996.6430664 2007 74019996.6430664 2008 61560001.373291 2009 73529998.7792969 2010 79300003.0517578 2011 92589996.3378906 2012 84269996.6430664 2013 93569999.6948242 2014 149919998.168945 2015 77150001.5258789 2016 78059997.55859381 2017 68330001.8310547 2018 37520000.4577637 2019 65080001.8310547 2020 52500000 2021 38409999.8474121 2022 24010000.2288818