| Year | Value | | 2022 | 9,813 | | 2021 | 9,310 | | 2020 | 8,769 | | 2019 | 8,215 | | 2018 | 7,676 | | 2017 | 7,160 | | 2016 | 6,667 | | 2015 | 6,187 | | 2014 | 5,707 | | 2013 | 5,230 | | 2012 | 4,764 | | 2011 | 4,318 | | 2010 | 3,987 | | 2009 | 3,771 | | 2008 | 3,588 | | 2007 | 3,450 | | 2006 | 3,358 | | 2005 | 3,301 | | 2004 | 3,250 | | 2003 | 3,177 | | 2002 | 3,070 | | 2001 | 2,932 | | 2000 | 2,776 | | 1999 | 2,623 | | 1998 | 2,485 | | 1997 | 2,365 | | 1996 | 2,273 | | 1995 | 2,207 | | 1994 | 2,151 | | 1993 | 2,092 | | 1992 | 2,014 | | 1991 | 1,940 | | 1990 | 1,894 | | 1989 | 1,858 | | 1988 | 1,826 | | 1987 | 1,804 | | 1986 | 1,792 | | 1985 | 1,788 | | 1984 | 1,783 | | 1983 | 1,765 | | 1982 | 1,719 | | 1981 | 1,647 | | 1980 | 1,562 | | 1979 | 1,483 | | 1978 | 1,426 | | 1977 | 1,396 | | 1976 | 1,381 | | 1975 | 1,382 | | 1974 | 1,392 | | 1973 | 1,399 | | 1972 | 1,391 | | 1971 | 1,360 | | 1970 | 1,302 | | 1969 | 1,235 | | 1968 | 1,171 | | 1967 | 1,118 | | 1966 | 1,080 | | 1965 | 1,054 | | 1964 | 1,036 | | 1963 | 1,023 | | 1962 | 1,009 | | 1961 | 993 | | 1960 | 961 |
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