| Year | Value | | 2023 | 80,902 | | 2022 | 76,917 | | 2021 | 71,801 | | 2020 | 65,720 | | 2019 | 59,071 | | 2018 | 51,940 | | 2017 | 45,558 | | 2016 | 39,743 | | 2015 | 34,321 | | 2014 | 29,187 | | 2013 | 24,333 | | 2012 | 19,813 | | 2011 | 15,696 | | 2010 | 12,022 | | 2009 | 10,813 | | 2008 | 12,282 | | 2007 | 14,113 | | 2006 | 15,350 | | 2005 | 15,317 | | 2004 | 14,438 | | 2003 | 13,525 | | 2002 | 12,674 | | 2001 | 11,819 | | 2000 | 10,981 | | 1999 | 10,227 | | 1998 | 9,589 | | 1997 | 9,069 | | 1996 | 8,638 | | 1995 | 8,275 | | 1994 | 7,963 | | 1993 | 7,663 | | 1992 | 7,356 | | 1991 | 7,035 | | 1990 | 6,693 | | 1989 | 6,326 | | 1988 | 5,934 | | 1987 | 5,536 | | 1986 | 5,163 | | 1985 | 4,955 | | 1984 | 4,839 | | 1983 | 4,585 | | 1982 | 4,157 | | 1981 | 3,631 | | 1980 | 3,381 | | 1979 | 3,425 | | 1978 | 3,368 | | 1977 | 3,121 | | 1976 | 2,764 | | 1975 | 2,533 | | 1974 | 2,499 |
|