Year | Value | 2022 | 27,329 | 2021 | 26,114 | 2020 | 28,755 | 2019 | 34,597 | 2018 | 41,964 | 2017 | 48,799 | 2016 | 53,020 | 2015 | 54,013 | 2014 | 52,508 | 2013 | 49,735 | 2012 | 46,848 | 2011 | 44,514 | 2010 | 43,433 | 2009 | 44,079 | 2008 | 45,604 | 2007 | 46,738 | 2006 | 47,269 | 2005 | 47,120 | 2004 | 45,966 | 2003 | 43,496 | 2002 | 39,708 | 2001 | 35,199 | 2000 | 30,595 | 1999 | 26,340 | 1998 | 23,003 | 1997 | 20,982 | 1996 | 19,819 | 1995 | 19,360 | 1994 | 19,749 | 1993 | 20,559 | 1992 | 21,814 | 1991 | 23,782 | 1990 | 25,673 | 1989 | 26,650 | 1988 | 27,302 | 1987 | 27,620 | 1986 | 27,119 | 1985 | 26,335 | 1984 | 25,520 | 1983 | 24,753 | 1982 | 24,041 | 1981 | 23,162 | 1980 | 21,932 | 1979 | 20,368 | 1978 | 18,532 | 1977 | 16,538 | 1976 | 14,665 | 1975 | 13,101 | 1974 | 11,797 | 1973 | 10,710 | 1972 | 9,930 | 1971 | 9,550 | 1970 | 9,645 | 1969 | 10,233 | 1968 | 11,378 | 1967 | 12,887 | 1966 | 14,269 | 1965 | 15,160 | 1964 | 15,557 | 1963 | 15,442 | 1962 | 14,869 | 1961 | 14,212 | 1960 | 13,787 |
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