Year | Value | 2022 | 46,169 | 2021 | 46,403 | 2020 | 46,676 | 2019 | 47,038 | 2018 | 48,036 | 2017 | 49,399 | 2016 | 50,286 | 2015 | 50,877 | 2014 | 50,986 | 2013 | 50,390 | 2012 | 49,344 | 2011 | 48,252 | 2010 | 47,404 | 2009 | 46,911 | 2008 | 47,064 | 2007 | 47,838 | 2006 | 49,241 | 2005 | 51,092 | 2004 | 53,029 | 2003 | 54,725 | 2002 | 55,808 | 2001 | 56,131 | 2000 | 55,688 | 1999 | 54,620 | 1998 | 53,043 | 1997 | 51,506 | 1996 | 50,104 | 1995 | 49,292 | 1994 | 49,126 | 1993 | 49,244 | 1992 | 50,066 | 1991 | 51,360 | 1990 | 53,118 | 1989 | 55,149 | 1988 | 56,879 | 1987 | 58,149 | 1986 | 58,713 | 1985 | 58,547 | 1984 | 57,735 | 1983 | 56,339 | 1982 | 54,995 | 1981 | 53,871 | 1980 | 52,857 | 1979 | 51,775 | 1978 | 50,764 | 1977 | 50,060 | 1976 | 49,168 | 1975 | 48,133 | 1974 | 46,748 | 1973 | 44,803 | 1972 | 42,267 | 1971 | 39,462 | 1970 | 36,766 | 1969 | 34,337 | 1968 | 32,263 | 1967 | 30,556 | 1966 | 29,101 | 1965 | 27,815 | 1964 | 26,722 | 1963 | 25,842 | 1962 | 25,073 | 1961 | 24,273 | 1960 | 24,162 |
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