Year | Value | 2022 | 54,099 | 2021 | 53,552 | 2020 | 52,982 | 2019 | 52,400 | 2018 | 51,706 | 2017 | 51,075 | 2016 | 50,639 | 2015 | 50,217 | 2014 | 49,875 | 2013 | 49,579 | 2012 | 49,266 | 2011 | 49,068 | 2010 | 48,734 | 2009 | 48,261 | 2008 | 47,778 | 2007 | 47,296 | 2006 | 46,819 | 2005 | 46,349 | 2004 | 45,880 | 2003 | 45,421 | 2002 | 44,970 | 2001 | 44,536 | 2000 | 44,267 | 1999 | 44,094 | 1998 | 43,886 | 1997 | 43,662 | 1996 | 43,441 | 1995 | 43,512 | 1994 | 43,746 | 1993 | 43,955 | 1992 | 44,131 | 1991 | 44,254 | 1990 | 44,137 | 1989 | 43,853 | 1988 | 43,536 | 1987 | 43,205 | 1986 | 42,886 | 1985 | 42,480 | 1984 | 42,092 | 1983 | 41,713 | 1982 | 41,334 | 1981 | 41,006 | 1980 | 41,222 | 1979 | 41,678 | 1978 | 42,120 | 1977 | 42,543 | 1976 | 42,922 | 1975 | 43,205 | 1974 | 43,399 | 1973 | 43,549 | 1972 | 43,658 | 1971 | 43,738 | 1970 | 43,668 | 1969 | 43,573 | 1968 | 43,452 | 1967 | 43,289 | 1966 | 43,107 | 1965 | 42,930 | 1964 | 42,764 | 1963 | 42,614 | 1962 | 42,478 | 1961 | 42,366 | 1960 | 42,255 |
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