Year | Value | 2022 | 24,924 | 2021 | 24,653 | 2020 | 24,203 | 2019 | 23,580 | 2018 | 22,848 | 2017 | 22,051 | 2016 | 21,261 | 2015 | 20,478 | 2014 | 19,696 | 2013 | 18,984 | 2012 | 18,334 | 2011 | 17,663 | 2010 | 16,979 | 2009 | 16,316 | 2008 | 15,695 | 2007 | 15,136 | 2006 | 14,668 | 2005 | 14,294 | 2004 | 13,986 | 2003 | 13,712 | 2002 | 13,461 | 2001 | 13,214 | 2000 | 12,957 | 1999 | 12,713 | 1998 | 12,513 | 1997 | 12,329 | 1996 | 12,116 | 1995 | 11,869 | 1994 | 11,593 | 1993 | 11,255 | 1992 | 10,881 | 1991 | 10,556 | 1990 | 10,299 | 1989 | 10,086 | 1988 | 9,945 | 1987 | 9,875 | 1986 | 9,794 | 1985 | 9,678 | 1984 | 9,542 | 1983 | 9,389 | 1982 | 9,215 | 1981 | 9,036 | 1980 | 8,855 | 1979 | 8,661 | 1978 | 8,453 | 1977 | 8,242 | 1976 | 8,050 | 1975 | 7,890 | 1974 | 7,763 | 1973 | 7,675 | 1972 | 7,608 | 1971 | 7,523 | 1970 | 7,398 | 1969 | 7,239 | 1968 | 7,044 | 1967 | 6,822 | 1966 | 6,602 | 1965 | 6,403 | 1964 | 6,219 | 1963 | 6,044 | 1962 | 5,888 | 1961 | 5,766 | 1960 | 5,683 |
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