Year | Value | 2022 | 56,112 | 2021 | 55,700 | 2020 | 55,347 | 2019 | 54,690 | 2018 | 53,693 | 2017 | 52,732 | 2016 | 51,992 | 2015 | 51,454 | 2014 | 51,085 | 2013 | 50,723 | 2012 | 50,091 | 2011 | 49,104 | 2010 | 47,910 | 2009 | 46,681 | 2008 | 45,548 | 2007 | 44,705 | 2006 | 43,964 | 2005 | 43,087 | 2004 | 42,074 | 2003 | 40,788 | 2002 | 39,134 | 2001 | 37,147 | 2000 | 34,995 | 1999 | 32,871 | 1998 | 30,917 | 1997 | 29,204 | 1996 | 27,718 | 1995 | 26,362 | 1994 | 25,038 | 1993 | 23,688 | 1992 | 22,501 | 1991 | 21,476 | 1990 | 20,467 | 1989 | 19,554 | 1988 | 18,684 | 1987 | 17,960 | 1986 | 17,476 | 1985 | 17,132 | 1984 | 16,899 | 1983 | 16,780 | 1982 | 16,737 | 1981 | 16,845 | 1980 | 16,938 | 1979 | 16,761 | 1978 | 16,446 | 1977 | 16,114 | 1976 | 15,813 | 1975 | 15,605 | 1974 | 15,483 | 1973 | 15,412 | 1972 | 15,407 | 1971 | 15,467 | 1970 | 15,526 | 1969 | 15,327 | 1968 | 14,882 | 1967 | 14,419 | 1966 | 13,973 | 1965 | 13,581 | 1964 | 13,240 | 1963 | 12,919 | 1962 | 12,589 | 1961 | 12,352 | 1960 | 12,236 |
|