Year | Value | 2022 | 2,721 | 2021 | 2,782 | 2020 | 2,831 | 2019 | 2,861 | 2018 | 2,863 | 2017 | 2,862 | 2016 | 2,862 | 2015 | 2,852 | 2014 | 2,851 | 2013 | 2,861 | 2012 | 2,858 | 2011 | 2,876 | 2010 | 2,905 | 2009 | 2,924 | 2008 | 2,936 | 2007 | 2,943 | 2006 | 2,945 | 2005 | 2,941 | 2004 | 2,930 | 2003 | 2,911 | 2002 | 2,882 | 2001 | 2,866 | 2000 | 2,896 | 1999 | 2,931 | 1998 | 2,963 | 1997 | 2,991 | 1996 | 3,014 | 1995 | 3,031 | 1994 | 3,041 | 1993 | 3,041 | 1992 | 3,033 | 1991 | 3,016 | 1990 | 3,004 | 1989 | 3,063 | 1988 | 3,138 | 1987 | 3,204 | 1986 | 3,261 | 1985 | 3,310 | 1984 | 3,347 | 1983 | 3,374 | 1982 | 3,389 | 1981 | 3,393 | 1980 | 3,399 | 1979 | 3,326 | 1978 | 3,254 | 1977 | 3,178 | 1976 | 3,104 | 1975 | 3,028 | 1974 | 2,958 | 1973 | 2,896 | 1972 | 2,837 | 1971 | 2,786 | 1970 | 2,770 | 1969 | 2,788 | 1968 | 2,810 | 1967 | 2,827 | 1966 | 2,841 | 1965 | 2,859 | 1964 | 2,875 | 1963 | 2,890 | 1962 | 2,909 | 1961 | 2,924 | 1960 | 2,932 |
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