Year | Value | 2022 | 41,638 | 2021 | 40,974 | 2020 | 40,436 | 2019 | 40,021 | 2018 | 39,226 | 2017 | 37,992 | 2016 | 36,660 | 2015 | 34,628 | 2014 | 32,274 | 2013 | 30,303 | 2012 | 28,166 | 2011 | 25,666 | 2010 | 23,057 | 2009 | 21,609 | 2008 | 21,314 | 2007 | 20,960 | 2006 | 20,455 | 2005 | 19,807 | 2004 | 19,129 | 2003 | 18,671 | 2002 | 18,398 | 2001 | 18,090 | 2000 | 17,732 | 1999 | 17,337 | 1998 | 16,944 | 1997 | 16,589 | 1996 | 16,282 | 1995 | 16,019 | 1994 | 15,778 | 1993 | 15,498 | 1992 | 15,157 | 1991 | 14,801 | 1990 | 14,463 | 1989 | 14,157 | 1988 | 13,885 | 1987 | 13,651 | 1986 | 13,445 | 1985 | 13,265 | 1984 | 12,955 | 1983 | 12,518 | 1982 | 12,110 | 1981 | 11,733 | 1980 | 11,383 | 1979 | 11,057 | 1978 | 10,751 | 1977 | 10,466 | 1976 | 10,207 | 1975 | 9,976 | 1974 | 9,760 | 1973 | 9,580 | 1972 | 9,437 | 1971 | 9,292 | 1970 | 9,139 | 1969 | 8,979 | 1968 | 8,812 | 1967 | 8,639 | 1966 | 8,470 | 1965 | 8,306 | 1964 | 8,145 | 1963 | 7,984 | 1962 | 7,825 | 1961 | 7,664 | 1960 | 7,505 |
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