Year | Value | 2022 | 36,101 | 2021 | 35,771 | 2020 | 35,677 | 2019 | 35,696 | 2018 | 35,680 | 2017 | 35,511 | 2016 | 35,068 | 2015 | 34,310 | 2014 | 33,317 | 2013 | 32,218 | 2012 | 31,151 | 2011 | 30,242 | 2010 | 29,475 | 2009 | 28,810 | 2008 | 28,232 | 2007 | 27,671 | 2006 | 27,078 | 2005 | 26,443 | 2004 | 25,777 | 2003 | 25,079 | 2002 | 24,330 | 2001 | 23,408 | 2000 | 22,301 | 1999 | 21,165 | 1998 | 20,101 | 1997 | 19,177 | 1996 | 18,434 | 1995 | 17,854 | 1994 | 17,381 | 1993 | 16,951 | 1992 | 16,519 | 1991 | 16,082 | 1990 | 15,662 | 1989 | 15,287 | 1988 | 14,970 | 1987 | 14,712 | 1986 | 14,490 | 1985 | 14,272 | 1984 | 14,038 | 1983 | 13,772 | 1982 | 13,493 | 1981 | 13,264 | 1980 | 13,107 | 1979 | 12,994 | 1978 | 12,906 | 1977 | 12,815 | 1976 | 12,686 | 1975 | 12,565 | 1974 | 12,621 | 1973 | 12,721 | 1972 | 12,750 | 1971 | 12,816 | 1970 | 12,888 | 1969 | 12,943 | 1968 | 12,950 | 1967 | 12,881 | 1966 | 12,714 | 1965 | 12,439 | 1964 | 12,064 | 1963 | 11,599 | 1962 | 11,085 | 1961 | 10,612 | 1960 | 10,367 |
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