Year | Value | 2022 | 44,042 | 2021 | 43,607 | 2020 | 45,315 | 2019 | 45,462 | 2018 | 43,419 | 2017 | 39,656 | 2016 | 35,525 | 2015 | 32,744 | 2014 | 30,995 | 2013 | 29,139 | 2012 | 26,707 | 2011 | 24,489 | 2010 | 22,593 | 2009 | 21,305 | 2008 | 20,726 | 2007 | 20,217 | 2006 | 19,885 | 2005 | 19,675 | 2004 | 19,404 | 2003 | 19,448 | 2002 | 19,784 | 2001 | 19,889 | 2000 | 19,786 | 1999 | 19,513 | 1998 | 19,120 | 1997 | 18,644 | 1996 | 18,090 | 1995 | 17,481 | 1994 | 16,857 | 1993 | 15,949 | 1992 | 14,836 | 1991 | 13,886 | 1990 | 13,091 | 1989 | 12,419 | 1988 | 11,849 | 1987 | 11,350 | 1986 | 10,901 | 1985 | 10,486 | 1984 | 10,068 | 1983 | 9,639 | 1982 | 9,224 | 1981 | 8,839 | 1980 | 8,497 | 1979 | 8,196 | 1978 | 7,930 | 1977 | 7,698 | 1976 | 7,491 | 1975 | 7,309 | 1974 | 7,154 | 1973 | 7,031 | 1972 | 6,933 | 1971 | 6,837 | 1970 | 6,740 | 1969 | 6,640 | 1968 | 6,534 | 1967 | 6,424 | 1966 | 6,314 | 1965 | 6,207 | 1964 | 6,102 | 1963 | 6,003 | 1962 | 5,905 | 1961 | 5,799 | 1960 | 5,680 |
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