Year | Value | 2022 | 32,065 | 2021 | 31,131 | 2020 | 30,001 | 2019 | 28,715 | 2018 | 27,451 | 2017 | 26,380 | 2016 | 25,629 | 2015 | 25,237 | 2014 | 25,239 | 2013 | 25,505 | 2012 | 25,792 | 2011 | 26,045 | 2010 | 26,296 | 2009 | 26,544 | 2008 | 26,806 | 2007 | 27,068 | 2006 | 27,114 | 2005 | 26,973 | 2004 | 26,812 | 2003 | 26,560 | 2002 | 26,190 | 2001 | 25,804 | 2000 | 25,356 | 1999 | 24,721 | 1998 | 23,922 | 1997 | 23,038 | 1996 | 22,065 | 1995 | 21,039 | 1994 | 20,279 | 1993 | 19,837 | 1992 | 19,500 | 1991 | 19,307 | 1990 | 19,183 | 1989 | 18,781 | 1988 | 18,173 | 1987 | 17,643 | 1986 | 17,177 | 1985 | 16,760 | 1984 | 16,427 | 1983 | 16,106 | 1982 | 15,704 | 1981 | 15,218 | 1980 | 14,697 | 1979 | 14,157 | 1978 | 13,592 | 1977 | 13,017 | 1976 | 12,475 | 1975 | 11,980 | 1974 | 11,519 | 1973 | 11,091 | 1972 | 10,690 | 1971 | 10,302 | 1970 | 9,928 | 1969 | 9,585 | 1968 | 9,285 | 1967 | 9,028 | 1966 | 8,805 | 1965 | 8,601 | 1964 | 8,405 | 1963 | 8,210 | 1962 | 8,012 | 1961 | 7,812 | 1960 | 7,603 |
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