Year | Value | 2022 | 14,160 | 2021 | 14,303 | 2020 | 14,876 | 2019 | 15,249 | 2018 | 15,266 | 2017 | 15,274 | 2016 | 15,299 | 2015 | 15,191 | 2014 | 14,887 | 2013 | 14,616 | 2012 | 14,358 | 2011 | 14,169 | 2010 | 14,177 | 2009 | 14,316 | 2008 | 14,456 | 2007 | 14,677 | 2006 | 15,035 | 2005 | 15,265 | 2004 | 15,205 | 2003 | 15,026 | 2002 | 14,368 | 2001 | 12,987 | 2000 | 11,543 | 1999 | 10,403 | 1998 | 9,487 | 1997 | 9,037 | 1996 | 9,195 | 1995 | 9,532 | 1994 | 9,709 | 1993 | 9,687 | 1992 | 9,615 | 1991 | 9,578 | 1990 | 9,343 | 1989 | 9,240 | 1988 | 9,115 | 1987 | 8,926 | 1986 | 8,700 | 1985 | 8,444 | 1984 | 8,267 | 1983 | 8,316 | 1982 | 8,284 | 1981 | 8,148 | 1980 | 8,060 | 1979 | 7,877 | 1978 | 7,618 | 1977 | 7,312 | 1976 | 7,044 | 1975 | 6,777 | 1974 | 6,545 | 1973 | 6,444 | 1972 | 6,422 | 1971 | 6,465 | 1970 | 6,546 | 1969 | 6,694 | 1968 | 6,909 | 1967 | 7,136 | 1966 | 7,359 | 1965 | 7,556 | 1964 | 7,661 | 1963 | 7,648 | 1962 | 7,557 | 1961 | 7,409 | 1960 | 7,227 |
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