Year | Value | 2022 | 17,682 | 2021 | 17,346 | 2020 | 17,045 | 2019 | 16,639 | 2018 | 16,120 | 2017 | 15,614 | 2016 | 15,140 | 2015 | 14,709 | 2014 | 14,326 | 2013 | 13,958 | 2012 | 13,600 | 2011 | 13,266 | 2010 | 12,946 | 2009 | 12,632 | 2008 | 12,344 | 2007 | 12,103 | 2006 | 11,919 | 2005 | 11,747 | 2004 | 11,527 | 2003 | 11,240 | 2002 | 10,895 | 2001 | 10,385 | 2000 | 9,892 | 1999 | 9,749 | 1998 | 9,798 | 1997 | 9,813 | 1996 | 9,785 | 1995 | 9,836 | 1994 | 9,922 | 1993 | 9,968 | 1992 | 10,057 | 1991 | 10,310 | 1990 | 10,248 | 1989 | 9,908 | 1988 | 9,709 | 1987 | 9,491 | 1986 | 9,275 | 1985 | 9,080 | 1984 | 8,905 | 1983 | 8,729 | 1982 | 8,558 | 1981 | 8,391 | 1980 | 8,226 | 1979 | 8,062 | 1978 | 7,895 | 1977 | 7,726 | 1976 | 7,557 | 1975 | 7,383 | 1974 | 7,206 | 1973 | 7,027 | 1972 | 6,844 | 1971 | 6,658 | 1970 | 6,474 | 1969 | 6,287 | 1968 | 6,095 | 1967 | 5,900 | 1966 | 5,700 | 1965 | 5,493 | 1964 | 5,279 | 1963 | 5,056 | 1962 | 4,829 | 1961 | 4,600 | 1960 | 4,372 |
|