Year | Value | 2022 | 69,563 | 2021 | 69,869 | 2020 | 69,328 | 2019 | 68,539 | 2018 | 66,719 | 2017 | 63,951 | 2016 | 61,356 | 2015 | 58,793 | 2014 | 56,506 | 2013 | 54,703 | 2012 | 53,486 | 2011 | 52,504 | 2010 | 51,425 | 2009 | 50,234 | 2008 | 49,024 | 2007 | 48,050 | 2006 | 47,802 | 2005 | 48,539 | 2004 | 49,956 | 2003 | 51,698 | 2002 | 53,503 | 2001 | 55,010 | 2000 | 55,949 | 1999 | 56,321 | 1998 | 56,051 | 1997 | 55,091 | 1996 | 53,760 | 1995 | 52,589 | 1994 | 51,900 | 1993 | 51,353 | 1992 | 50,517 | 1991 | 49,396 | 1990 | 47,908 | 1989 | 45,914 | 1988 | 43,798 | 1987 | 41,943 | 1986 | 40,159 | 1985 | 38,281 | 1984 | 36,447 | 1983 | 34,769 | 1982 | 33,196 | 1981 | 31,738 | 1980 | 30,377 | 1979 | 29,091 | 1978 | 27,953 | 1977 | 26,997 | 1976 | 26,204 | 1975 | 25,615 | 1974 | 25,237 | 1973 | 25,007 | 1972 | 24,858 | 1971 | 24,750 | 1970 | 24,665 | 1969 | 24,584 | 1968 | 24,531 | 1967 | 24,567 | 1966 | 24,673 | 1965 | 24,758 | 1964 | 24,758 | 1963 | 24,647 | 1962 | 24,428 | 1961 | 24,158 | 1960 | 23,853 |
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