Year | Value | 2022 | 61,920 | 2021 | 59,842 | 2020 | 57,840 | 2019 | 55,869 | 2018 | 53,993 | 2017 | 52,224 | 2016 | 50,556 | 2015 | 48,972 | 2014 | 47,505 | 2013 | 46,149 | 2012 | 44,863 | 2011 | 43,174 | 2010 | 41,458 | 2009 | 39,919 | 2008 | 38,529 | 2007 | 37,447 | 2006 | 36,389 | 2005 | 35,426 | 2004 | 35,437 | 2003 | 36,666 | 2002 | 37,494 | 2001 | 37,366 | 2000 | 36,894 | 1999 | 36,026 | 1998 | 34,453 | 1997 | 31,401 | 1996 | 29,282 | 1995 | 28,639 | 1994 | 28,518 | 1993 | 28,681 | 1992 | 27,655 | 1991 | 26,138 | 1990 | 29,751 | 1989 | 33,653 | 1988 | 32,531 | 1987 | 31,384 | 1986 | 30,266 | 1985 | 29,218 | 1984 | 28,228 | 1983 | 27,389 | 1982 | 26,695 | 1981 | 26,010 | 1980 | 25,328 | 1979 | 24,666 | 1978 | 24,021 | 1977 | 23,401 | 1976 | 22,843 | 1975 | 22,363 | 1974 | 21,906 | 1973 | 21,454 | 1972 | 21,029 | 1971 | 20,611 | 1970 | 20,163 | 1969 | 19,681 | 1968 | 19,173 | 1967 | 18,641 | 1966 | 18,124 | 1965 | 17,633 | 1964 | 17,162 | 1963 | 16,719 | 1962 | 16,312 | 1961 | 15,917 | 1960 | 15,509 |
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