Year | Value | 2022 | 14,621 | 2021 | 14,063 | 2020 | 13,569 | 2019 | 13,058 | 2018 | 13,031 | 2017 | 13,130 | 2016 | 13,390 | 2015 | 13,771 | 2014 | 14,086 | 2013 | 14,110 | 2012 | 13,863 | 2011 | 13,355 | 2010 | 12,809 | 2009 | 12,338 | 2008 | 12,016 | 2007 | 11,876 | 2006 | 11,825 | 2005 | 11,765 | 2004 | 11,579 | 2003 | 11,156 | 2002 | 10,555 | 2001 | 9,930 | 2000 | 9,374 | 1999 | 9,140 | 1998 | 9,284 | 1997 | 9,574 | 1996 | 9,885 | 1995 | 10,092 | 1994 | 10,168 | 1993 | 10,127 | 1992 | 9,947 | 1991 | 9,683 | 1990 | 9,438 | 1989 | 9,295 | 1988 | 9,353 | 1987 | 9,587 | 1986 | 9,877 | 1985 | 10,151 | 1984 | 10,350 | 1983 | 10,436 | 1982 | 10,396 | 1981 | 10,268 | 1980 | 10,135 | 1979 | 10,053 | 1978 | 10,049 | 1977 | 10,127 | 1976 | 10,256 | 1975 | 10,414 | 1974 | 10,583 | 1973 | 10,703 | 1972 | 10,691 | 1971 | 10,488 | 1970 | 10,133 | 1969 | 9,751 | 1968 | 9,412 | 1967 | 9,234 | 1966 | 9,266 | 1965 | 9,343 | 1964 | 9,351 | 1963 | 9,288 | 1962 | 8,687 | 1961 | 7,593 | 1960 | 6,578 |
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