| Year | Value | | 2022 | 10,085 | | 2021 | 9,621 | | 2020 | 9,179 | | 2019 | 8,746 | | 2018 | 8,245 | | 2017 | 7,719 | | 2016 | 7,343 | | 2015 | 6,989 | | 2014 | 6,648 | | 2013 | 6,315 | | 2012 | 5,996 | | 2011 | 5,701 | | 2010 | 5,455 | | 2009 | 5,237 | | 2008 | 5,058 | | 2007 | 4,903 | | 2006 | 4,739 | | 2005 | 4,591 | | 2004 | 4,459 | | 2003 | 4,371 | | 2002 | 4,307 | | 2001 | 4,239 | | 2000 | 4,187 | | 1999 | 4,153 | | 1998 | 4,108 | | 1997 | 4,041 | | 1996 | 3,980 | | 1995 | 3,904 | | 1994 | 3,826 | | 1993 | 3,748 | | 1992 | 3,657 | | 1991 | 3,568 | | 1990 | 3,477 | | 1989 | 3,405 | | 1988 | 3,337 | | 1987 | 3,266 | | 1986 | 3,183 | | 1985 | 3,088 | | 1984 | 3,006 | | 1983 | 2,908 | | 1982 | 2,803 | | 1981 | 2,691 | | 1980 | 2,568 | | 1979 | 2,456 | | 1978 | 2,355 | | 1977 | 2,275 | | 1976 | 2,229 | | 1975 | 2,198 | | 1974 | 2,169 | | 1973 | 2,181 | | 1972 | 2,248 | | 1971 | 2,339 | | 1970 | 2,453 | | 1969 | 2,437 | | 1968 | 2,280 | | 1967 | 2,130 | | 1966 | 1,986 | | 1965 | 1,848 | | 1964 | 1,714 | | 1963 | 1,580 | | 1962 | 1,449 | | 1961 | 1,325 | | 1960 | 1,233 |
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