Year | Value | 2022 | 68,732 | 2021 | 70,371 | 2020 | 70,650 | 2019 | 69,109 | 2018 | 66,623 | 2017 | 63,764 | 2016 | 60,824 | 2015 | 57,917 | 2014 | 53,823 | 2013 | 46,982 | 2012 | 41,109 | 2011 | 38,204 | 2010 | 35,880 | 2009 | 33,534 | 2008 | 31,037 | 2007 | 28,490 | 2006 | 26,000 | 2005 | 23,821 | 2004 | 21,911 | 2003 | 20,147 | 2002 | 18,641 | 2001 | 17,473 | 2000 | 16,646 | 1999 | 16,159 | 1998 | 16,047 | 1997 | 16,148 | 1996 | 16,184 | 1995 | 16,049 | 1994 | 15,730 | 1993 | 15,184 | 1992 | 14,447 | 1991 | 13,685 | 1990 | 13,025 | 1989 | 12,453 | 1988 | 12,038 | 1987 | 11,793 | 1986 | 11,459 | 1985 | 11,087 | 1984 | 10,803 | 1983 | 10,578 | 1982 | 10,655 | 1981 | 10,798 | 1980 | 10,759 | 1979 | 10,765 | 1978 | 12,174 | 1977 | 13,616 | 1976 | 12,661 | 1975 | 11,595 | 1974 | 11,461 | 1973 | 11,281 | 1972 | 11,070 | 1971 | 10,880 | 1970 | 10,743 | 1969 | 10,648 | 1968 | 10,574 | 1967 | 10,539 | 1966 | 10,502 | 1965 | 10,426 | 1964 | 10,311 | 1963 | 10,136 | 1962 | 9,911 | 1961 | 9,661 | 1960 | 9,412 |
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