Year | Value | 2022 | 59,784 | 2021 | 60,881 | 2020 | 62,598 | 2019 | 63,913 | 2018 | 64,588 | 2017 | 64,891 | 2016 | 64,455 | 2015 | 63,547 | 2014 | 62,722 | 2013 | 61,530 | 2012 | 60,063 | 2011 | 59,253 | 2010 | 59,019 | 2009 | 58,930 | 2008 | 59,262 | 2007 | 59,427 | 2006 | 58,837 | 2005 | 57,943 | 2004 | 56,960 | 2003 | 56,235 | 2002 | 56,351 | 2001 | 57,812 | 2000 | 60,341 | 1999 | 63,132 | 1998 | 65,870 | 1997 | 68,196 | 1996 | 69,532 | 1995 | 69,872 | 1994 | 69,507 | 1993 | 68,669 | 1992 | 68,172 | 1991 | 68,160 | 1990 | 68,695 | 1989 | 69,993 | 1988 | 71,175 | 1987 | 71,321 | 1986 | 69,917 | 1985 | 67,036 | 1984 | 63,250 | 1983 | 58,926 | 1982 | 54,491 | 1981 | 50,805 | 1980 | 48,174 | 1979 | 46,060 | 1978 | 43,901 | 1977 | 41,537 | 1976 | 39,412 | 1975 | 38,364 | 1974 | 38,873 | 1973 | 40,847 | 1972 | 43,942 | 1971 | 47,412 | 1970 | 50,337 | 1969 | 52,235 | 1968 | 53,184 | 1967 | 53,703 | 1966 | 54,453 | 1965 | 55,379 | 1964 | 55,912 | 1963 | 55,876 | 1962 | 55,119 | 1961 | 53,347 | 1960 | 50,582 |
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