Year | Value | 2022 | 42,747 | 2021 | 42,864 | 2020 | 43,174 | 2019 | 42,768 | 2018 | 41,444 | 2017 | 39,798 | 2016 | 38,085 | 2015 | 36,543 | 2014 | 35,446 | 2013 | 34,804 | 2012 | 34,485 | 2011 | 34,269 | 2010 | 33,977 | 2009 | 33,704 | 2008 | 33,440 | 2007 | 33,158 | 2006 | 32,866 | 2005 | 32,581 | 2004 | 32,271 | 2003 | 31,885 | 2002 | 31,436 | 2001 | 30,967 | 2000 | 30,512 | 1999 | 30,070 | 1998 | 29,665 | 1997 | 29,306 | 1996 | 28,941 | 1995 | 28,501 | 1994 | 27,958 | 1993 | 27,301 | 1992 | 26,531 | 1991 | 25,685 | 1990 | 24,809 | 1989 | 23,935 | 1988 | 23,082 | 1987 | 22,252 | 1986 | 21,429 | 1985 | 20,607 | 1984 | 19,784 | 1983 | 18,963 | 1982 | 18,141 | 1981 | 17,290 | 1980 | 16,402 | 1979 | 15,501 | 1978 | 14,600 | 1977 | 13,720 | 1976 | 12,927 | 1975 | 12,262 | 1974 | 11,718 | 1973 | 11,291 | 1972 | 10,976 | 1971 | 10,728 | 1970 | 10,519 | 1969 | 10,358 | 1968 | 10,257 | 1967 | 10,204 | 1966 | 10,175 | 1965 | 10,148 | 1964 | 10,109 | 1963 | 10,040 | 1962 | 9,957 | 1961 | 9,895 | 1960 | 9,874 |
|