Year | Value | 2022 | 65,237 | 2021 | 67,304 | 2020 | 67,702 | 2019 | 66,317 | 2018 | 63,512 | 2017 | 60,190 | 2016 | 56,962 | 2015 | 54,495 | 2014 | 53,037 | 2013 | 52,019 | 2012 | 50,693 | 2011 | 48,832 | 2010 | 46,440 | 2009 | 43,489 | 2008 | 40,113 | 2007 | 36,569 | 2006 | 33,038 | 2005 | 29,683 | 2004 | 26,729 | 2003 | 24,436 | 2002 | 23,177 | 2001 | 22,841 | 2000 | 22,971 | 1999 | 23,418 | 1998 | 23,874 | 1997 | 24,530 | 1996 | 25,536 | 1995 | 26,375 | 1994 | 26,679 | 1993 | 26,535 | 1992 | 26,137 | 1991 | 25,445 | 1990 | 24,518 | 1989 | 23,264 | 1988 | 22,283 | 1987 | 21,560 | 1986 | 20,447 | 1985 | 19,147 | 1984 | 17,754 | 1983 | 16,289 | 1982 | 14,840 | 1981 | 13,580 | 1980 | 12,623 | 1979 | 11,929 | 1978 | 11,483 | 1977 | 11,322 | 1976 | 11,381 | 1975 | 11,606 | 1974 | 11,995 | 1973 | 12,568 | 1972 | 13,220 | 1971 | 13,775 | 1970 | 14,128 | 1969 | 14,236 | 1968 | 14,059 | 1967 | 13,673 | 1966 | 13,268 | 1965 | 12,959 | 1964 | 12,750 | 1963 | 12,643 | 1962 | 12,589 | 1961 | 12,515 | 1960 | 12,413 |
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