Year | Value | 2022 | 33,830 | 2021 | 32,600 | 2020 | 31,423 | 2019 | 30,176 | 2018 | 28,948 | 2017 | 27,880 | 2016 | 26,930 | 2015 | 26,088 | 2014 | 25,385 | 2013 | 24,761 | 2012 | 24,516 | 2011 | 24,601 | 2010 | 24,571 | 2009 | 24,355 | 2008 | 23,939 | 2007 | 23,336 | 2006 | 22,628 | 2005 | 21,922 | 2004 | 21,309 | 2003 | 20,785 | 2002 | 20,249 | 2001 | 19,727 | 2000 | 19,210 | 1999 | 18,687 | 1998 | 18,175 | 1997 | 17,678 | 1996 | 17,227 | 1995 | 16,814 | 1994 | 16,354 | 1993 | 15,854 | 1992 | 15,321 | 1991 | 14,818 | 1990 | 14,386 | 1989 | 13,989 | 1988 | 13,605 | 1987 | 13,212 | 1986 | 12,834 | 1985 | 12,464 | 1984 | 12,099 | 1983 | 11,743 | 1982 | 11,393 | 1981 | 11,047 | 1980 | 10,709 | 1979 | 10,380 | 1978 | 10,057 | 1977 | 9,737 | 1976 | 9,419 | 1975 | 9,099 | 1974 | 8,785 | 1973 | 8,474 | 1972 | 8,167 | 1971 | 7,871 | 1970 | 7,589 | 1969 | 7,313 | 1968 | 7,048 | 1967 | 6,794 | 1966 | 6,541 | 1965 | 6,281 | 1964 | 6,014 | 1963 | 5,740 | 1962 | 5,462 | 1961 | 5,185 | 1960 | 4,914 |
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