Year | Value | 2022 | 25,383 | 2021 | 25,511 | 2020 | 25,472 | 2019 | 25,055 | 2018 | 24,528 | 2017 | 24,043 | 2016 | 23,608 | 2015 | 23,229 | 2014 | 22,890 | 2013 | 22,571 | 2012 | 22,277 | 2011 | 22,017 | 2010 | 21,795 | 2009 | 21,600 | 2008 | 21,424 | 2007 | 21,258 | 2006 | 21,080 | 2005 | 20,877 | 2004 | 20,644 | 2003 | 20,370 | 2002 | 20,056 | 2001 | 19,730 | 2000 | 19,404 | 1999 | 19,076 | 1998 | 18,751 | 1997 | 18,427 | 1996 | 18,086 | 1995 | 17,718 | 1994 | 17,330 | 1993 | 16,924 | 1992 | 16,502 | 1991 | 16,075 | 1990 | 15,650 | 1989 | 15,226 | 1988 | 14,806 | 1987 | 14,389 | 1986 | 13,961 | 1985 | 13,515 | 1984 | 13,055 | 1983 | 12,565 | 1982 | 12,025 | 1981 | 11,464 | 1980 | 10,921 | 1979 | 10,389 | 1978 | 9,859 | 1977 | 9,346 | 1976 | 8,881 | 1975 | 8,482 | 1974 | 8,151 | 1973 | 7,890 | 1972 | 7,688 | 1971 | 7,508 | 1970 | 7,336 | 1969 | 7,172 | 1968 | 7,005 | 1967 | 6,828 | 1966 | 6,648 | 1965 | 6,467 | 1964 | 6,278 | 1963 | 6,069 | 1962 | 5,842 | 1961 | 5,611 | 1960 | 5,382 |
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