| Year | Value | | 2022 | 119,559 | | 2021 | 111,278 | | 2020 | 103,217 | | 2019 | 95,292 | | 2018 | 87,849 | | 2017 | 81,209 | | 2016 | 75,549 | | 2015 | 70,908 | | 2014 | 67,099 | | 2013 | 64,337 | | 2012 | 62,624 | | 2011 | 61,862 | | 2010 | 62,000 | | 2009 | 62,524 | | 2008 | 63,340 | | 2007 | 64,540 | | 2006 | 65,714 | | 2005 | 66,706 | | 2004 | 67,398 | | 2003 | 67,307 | | 2002 | 66,121 | | 2001 | 64,241 | | 2000 | 62,029 | | 1999 | 59,540 | | 1998 | 57,034 | | 1997 | 54,342 | | 1996 | 51,507 | | 1995 | 48,828 | | 1994 | 46,006 | | 1993 | 44,468 | | 1992 | 44,033 | | 1991 | 42,732 | | 1990 | 40,933 | | 1989 | 39,098 | | 1988 | 38,208 | | 1987 | 37,724 | | 1986 | 36,307 | | 1985 | 34,878 | | 1984 | 33,956 | | 1983 | 33,247 | | 1982 | 32,336 | | 1981 | 31,190 | | 1980 | 30,123 | | 1979 | 29,117 | | 1978 | 28,179 | | 1977 | 27,312 | | 1976 | 26,505 | | 1975 | 25,756 | | 1974 | 25,068 | | 1973 | 24,434 | | 1972 | 23,919 | | 1971 | 23,553 | | 1970 | 23,298 | | 1969 | 23,131 | | 1968 | 23,000 | | 1967 | 22,885 | | 1966 | 22,777 | | 1965 | 22,602 | | 1964 | 22,305 | | 1963 | 21,953 | | 1962 | 21,484 | | 1961 | 20,894 | | 1960 | 20,330 |
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