Year | Value | 2022 | 33,439 | 2021 | 32,594 | 2020 | 31,727 | 2019 | 30,990 | 2018 | 30,445 | 2017 | 30,055 | 2016 | 29,696 | 2015 | 29,292 | 2014 | 28,828 | 2013 | 28,197 | 2012 | 27,347 | 2011 | 26,316 | 2010 | 25,184 | 2009 | 24,041 | 2008 | 22,976 | 2007 | 22,043 | 2006 | 21,238 | 2005 | 20,528 | 2004 | 19,885 | 2003 | 19,280 | 2002 | 18,867 | 2001 | 18,638 | 2000 | 18,414 | 1999 | 18,191 | 1998 | 17,833 | 1997 | 17,377 | 1996 | 16,993 | 1995 | 16,678 | 1994 | 16,418 | 1993 | 16,196 | 1992 | 15,979 | 1991 | 15,700 | 1990 | 15,361 | 1989 | 15,001 | 1988 | 14,636 | 1987 | 14,277 | 1986 | 13,923 | 1985 | 13,571 | 1984 | 13,217 | 1983 | 12,850 | 1982 | 12,467 | 1981 | 12,028 | 1980 | 11,508 | 1979 | 10,851 | 1978 | 10,109 | 1977 | 9,465 | 1976 | 8,977 | 1975 | 8,616 | 1974 | 8,438 | 1973 | 8,430 | 1972 | 8,433 | 1971 | 8,395 | 1970 | 8,336 | 1969 | 8,261 | 1968 | 8,173 | 1967 | 8,077 | 1966 | 7,971 | 1965 | 7,848 | 1964 | 7,714 | 1963 | 7,575 | 1962 | 7,436 | 1961 | 7,304 | 1960 | 7,184 |
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