Year | Value | 2022 | 29,175 | 2021 | 28,848 | 2020 | 28,533 | 2019 | 28,127 | 2018 | 27,518 | 2017 | 26,651 | 2016 | 25,586 | 2015 | 24,420 | 2014 | 23,248 | 2013 | 22,158 | 2012 | 21,202 | 2011 | 20,380 | 2010 | 19,657 | 2009 | 18,990 | 2008 | 18,344 | 2007 | 17,698 | 2006 | 17,054 | 2005 | 16,438 | 2004 | 15,879 | 2003 | 15,484 | 2002 | 15,384 | 2001 | 15,408 | 2000 | 15,335 | 1999 | 15,157 | 1998 | 14,928 | 1997 | 14,710 | 1996 | 14,502 | 1995 | 14,290 | 1994 | 14,077 | 1993 | 13,853 | 1992 | 13,597 | 1991 | 13,313 | 1990 | 13,001 | 1989 | 12,643 | 1988 | 12,251 | 1987 | 11,842 | 1986 | 11,400 | 1985 | 10,941 | 1984 | 10,409 | 1983 | 9,815 | 1982 | 9,310 | 1981 | 8,915 | 1980 | 8,580 | 1979 | 8,390 | 1978 | 8,357 | 1977 | 8,329 | 1976 | 8,260 | 1975 | 8,172 | 1974 | 8,068 | 1973 | 7,947 | 1972 | 7,817 | 1971 | 7,674 | 1970 | 7,515 | 1969 | 7,340 | 1968 | 7,157 | 1967 | 6,975 | 1966 | 6,817 | 1965 | 6,695 | 1964 | 6,590 | 1963 | 6,498 | 1962 | 6,420 | 1961 | 6,356 | 1960 | 6,312 |
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