Year | Value | 2022 | 14,204 | 2021 | 13,498 | 2020 | 12,873 | 2019 | 12,274 | 2018 | 11,766 | 2017 | 11,382 | 2016 | 11,229 | 2015 | 11,321 | 2014 | 11,427 | 2013 | 11,338 | 2012 | 11,155 | 2011 | 11,076 | 2010 | 10,998 | 2009 | 10,894 | 2008 | 10,807 | 2007 | 10,734 | 2006 | 10,592 | 2005 | 10,307 | 2004 | 10,157 | 2003 | 10,067 | 2002 | 9,902 | 2001 | 9,925 | 2000 | 10,088 | 1999 | 10,263 | 1998 | 10,460 | 1997 | 10,621 | 1996 | 10,631 | 1995 | 10,625 | 1994 | 10,628 | 1993 | 10,553 | 1992 | 10,471 | 1991 | 10,369 | 1990 | 10,271 | 1989 | 10,127 | 1988 | 9,881 | 1987 | 9,552 | 1986 | 9,287 | 1985 | 9,077 | 1984 | 8,852 | 1983 | 8,656 | 1982 | 8,458 | 1981 | 8,154 | 1980 | 7,858 | 1979 | 7,630 | 1978 | 7,368 | 1977 | 7,123 | 1976 | 6,879 | 1975 | 6,578 | 1974 | 6,229 | 1973 | 5,884 | 1972 | 5,573 | 1971 | 5,414 | 1970 | 5,429 | 1969 | 5,501 | 1968 | 5,575 | 1967 | 5,651 | 1966 | 5,708 | 1965 | 5,788 | 1964 | 5,876 | 1963 | 5,911 | 1962 | 5,906 | 1961 | 5,896 | 1960 | 5,795 |
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