Year | Value | 2022 | 25,982 | 2021 | 24,936 | 2020 | 23,699 | 2019 | 22,325 | 2018 | 20,957 | 2017 | 19,763 | 2016 | 18,922 | 2015 | 18,412 | 2014 | 18,071 | 2013 | 17,805 | 2012 | 17,528 | 2011 | 17,197 | 2010 | 16,792 | 2009 | 16,323 | 2008 | 15,836 | 2007 | 15,372 | 2006 | 14,943 | 2005 | 14,543 | 2004 | 14,151 | 2003 | 13,764 | 2002 | 13,393 | 2001 | 13,031 | 2000 | 12,664 | 1999 | 12,290 | 1998 | 11,943 | 1997 | 11,651 | 1996 | 11,395 | 1995 | 11,130 | 1994 | 11,039 | 1993 | 11,161 | 1992 | 11,941 | 1991 | 12,763 | 1990 | 12,900 | 1989 | 12,816 | 1988 | 12,605 | 1987 | 12,310 | 1986 | 11,917 | 1985 | 11,522 | 1984 | 11,144 | 1983 | 10,796 | 1982 | 10,476 | 1981 | 10,167 | 1980 | 9,862 | 1979 | 9,559 | 1978 | 9,253 | 1977 | 8,944 | 1976 | 8,642 | 1975 | 8,352 | 1974 | 8,070 | 1973 | 7,792 | 1972 | 7,520 | 1971 | 7,256 | 1970 | 6,997 | 1969 | 6,747 | 1968 | 6,506 | 1967 | 6,275 | 1966 | 6,057 | 1965 | 5,852 | 1964 | 5,656 | 1963 | 5,471 | 1962 | 5,296 | 1961 | 5,132 | 1960 | 4,982 |
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