Year | Value | 2022 | 36,213 | 2021 | 35,450 | 2020 | 34,740 | 2019 | 33,892 | 2018 | 33,108 | 2017 | 32,198 | 2016 | 31,080 | 2015 | 30,026 | 2014 | 29,107 | 2013 | 28,371 | 2012 | 27,806 | 2011 | 27,346 | 2010 | 26,930 | 2009 | 26,539 | 2008 | 26,151 | 2007 | 25,783 | 2006 | 25,510 | 2005 | 25,378 | 2004 | 25,362 | 2003 | 25,425 | 2002 | 25,554 | 2001 | 25,715 | 2000 | 25,881 | 1999 | 26,033 | 1998 | 26,141 | 1997 | 26,197 | 1996 | 26,232 | 1995 | 26,258 | 1994 | 26,266 | 1993 | 26,271 | 1992 | 26,263 | 1991 | 26,186 | 1990 | 26,014 | 1989 | 25,765 | 1988 | 25,443 | 1987 | 25,060 | 1986 | 24,661 | 1985 | 24,266 | 1984 | 23,865 | 1983 | 23,449 | 1982 | 23,009 | 1981 | 22,523 | 1980 | 21,979 | 1979 | 21,379 | 1978 | 20,706 | 1977 | 19,983 | 1976 | 19,276 | 1975 | 18,625 | 1974 | 18,028 | 1973 | 17,513 | 1972 | 17,069 | 1971 | 16,595 | 1970 | 16,026 | 1969 | 15,373 | 1968 | 14,619 | 1967 | 13,804 | 1966 | 13,076 | 1965 | 12,527 | 1964 | 12,146 | 1963 | 11,936 | 1962 | 11,869 | 1961 | 11,818 | 1960 | 11,693 |
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