Year | Value | 2022 | 81,322 | 2021 | 80,855 | 2020 | 80,190 | 2019 | 79,253 | 2018 | 77,791 | 2017 | 75,673 | 2016 | 73,596 | 2015 | 72,381 | 2014 | 71,100 | 2013 | 69,550 | 2012 | 68,185 | 2011 | 66,091 | 2010 | 62,737 | 2009 | 59,233 | 2008 | 56,023 | 2007 | 52,775 | 2006 | 50,171 | 2005 | 48,074 | 2004 | 45,663 | 2003 | 43,538 | 2002 | 42,521 | 2001 | 41,961 | 2000 | 41,753 | 1999 | 42,546 | 1998 | 43,524 | 1997 | 43,659 | 1996 | 43,147 | 1995 | 42,046 | 1994 | 40,441 | 1993 | 38,425 | 1992 | 36,245 | 1991 | 34,246 | 1990 | 32,715 | 1989 | 31,820 | 1988 | 31,699 | 1987 | 32,153 | 1986 | 32,599 | 1985 | 32,620 | 1984 | 32,189 | 1983 | 31,270 | 1982 | 29,952 | 1981 | 28,738 | 1980 | 27,978 | 1979 | 27,576 | 1978 | 27,433 | 1977 | 27,549 | 1976 | 27,747 | 1975 | 27,903 | 1974 | 28,055 | 1973 | 28,246 | 1972 | 28,481 | 1971 | 28,857 | 1970 | 29,577 | 1969 | 30,680 | 1968 | 32,076 | 1967 | 33,551 | 1966 | 34,651 | 1965 | 35,089 | 1964 | 34,825 | 1963 | 33,824 | 1962 | 32,369 | 1961 | 31,137 | 1960 | 30,521 |
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