| Year | Value | | 2024 | 16,780 | | 2023 | 14,196 | | 2022 | 11,957 | | 2021 | 10,425 | | 2020 | 11,509 | | 2019 | 10,236 | | 2018 | 9,827 | | 2017 | 9,979 | | 2016 | 9,706 | | 2015 | 8,668 | | 2014 | 7,317 | | 2013 | 6,181 | | 2012 | 5,196 | | 2011 | 4,405 | | 2010 | 4,070 | | 2009 | 4,102 | | 2008 | 3,972 | | 2007 | 3,877 | | 2006 | 3,458 | | 2005 | 2,879 | | 2004 | 2,726 | | 2003 | 2,792 | | 2002 | 2,802 | | 2001 | 2,793 | | 2000 | 2,725 | | 1999 | 2,584 | | 1998 | 2,385 | | 1997 | 2,178 | | 1996 | 2,064 | | 1995 | 2,022 | | 1994 | 1,974 | | 1993 | 1,909 | | 1992 | 1,818 | | 1991 | 1,706 | | 1990 | 1,584 | | 1989 | 1,462 | | 1988 | 1,339 | | 1987 | 1,217 | | 1986 | 1,099 | | 1985 | 1,011 | | 1984 | 959 | | 1983 | 922 | | 1982 | 896 | | 1981 | 874 | | 1980 | 857 | | 1979 | 845 | | 1978 | 832 | | 1977 | 817 | | 1976 | 801 | | 1975 | 784 |
|