Year | Value | 2022 | 63,927 | 2021 | 61,309 | 2020 | 58,668 | 2019 | 56,490 | 2018 | 54,477 | 2017 | 52,874 | 2016 | 51,846 | 2015 | 50,717 | 2014 | 49,463 | 2013 | 48,173 | 2012 | 47,097 | 2011 | 46,737 | 2010 | 47,367 | 2009 | 48,697 | 2008 | 50,371 | 2007 | 52,127 | 2006 | 53,586 | 2005 | 54,441 | 2004 | 54,684 | 2003 | 54,285 | 2002 | 53,207 | 2001 | 51,780 | 2000 | 50,556 | 1999 | 49,858 | 1998 | 49,340 | 1997 | 48,557 | 1996 | 47,491 | 1995 | 46,042 | 1994 | 44,071 | 1993 | 41,958 | 1992 | 40,096 | 1991 | 38,322 | 1990 | 36,492 | 1989 | 34,671 | 1988 | 32,955 | 1987 | 31,354 | 1986 | 29,868 | 1985 | 28,499 | 1984 | 27,285 | 1983 | 26,278 | 1982 | 25,443 | 1981 | 24,760 | 1980 | 24,253 | 1979 | 23,915 | 1978 | 23,696 | 1977 | 23,549 | 1976 | 23,435 | 1975 | 23,324 | 1974 | 23,199 | 1973 | 23,073 | 1972 | 22,981 | 1971 | 22,931 | 1970 | 22,898 | 1969 | 22,867 | 1968 | 22,795 | 1967 | 22,657 | 1966 | 22,471 | 1965 | 22,264 | 1964 | 22,036 | 1963 | 21,769 | 1962 | 21,482 | 1961 | 21,200 | 1960 | 20,919 |
|