Year | Value | 2022 | 25,168 | 2021 | 24,146 | 2020 | 23,073 | 2019 | 21,979 | 2018 | 20,955 | 2017 | 19,980 | 2016 | 19,044 | 2015 | 18,136 | 2014 | 17,262 | 2013 | 16,423 | 2012 | 15,599 | 2011 | 14,786 | 2010 | 14,002 | 2009 | 13,244 | 2008 | 12,506 | 2007 | 11,813 | 2006 | 11,169 | 2005 | 10,565 | 2004 | 9,988 | 2003 | 9,426 | 2002 | 8,866 | 2001 | 8,295 | 2000 | 7,681 | 1999 | 7,019 | 1998 | 6,339 | 1997 | 5,643 | 1996 | 4,936 | 1995 | 4,235 | 1994 | 3,559 | 1993 | 2,926 | 1992 | 2,357 | 1991 | 1,858 | 1990 | 1,419 | 1989 | 1,080 | 1988 | 859 | 1987 | 710 | 1986 | 617 | 1985 | 569 | 1984 | 552 | 1983 | 557 | 1982 | 574 | 1981 | 578 | 1980 | 536 | 1979 | 469 | 1978 | 404 | 1977 | 347 | 1976 | 327 | 1975 | 386 | 1974 | 505 | 1973 | 652 | 1972 | 816 | 1971 | 976 | 1970 | 1,116 | 1969 | 1,230 | 1968 | 1,322 | 1967 | 1,396 | 1966 | 1,449 | 1965 | 1,490 | 1964 | 1,518 | 1963 | 1,535 | 1962 | 1,538 | 1961 | 1,530 | 1960 | 1,506 |
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