Year | Value | 2022 | 63,129 | 2021 | 63,246 | 2020 | 63,168 | 2019 | 62,779 | 2018 | 62,175 | 2017 | 61,482 | 2016 | 60,490 | 2015 | 59,141 | 2014 | 57,635 | 2013 | 56,090 | 2012 | 54,404 | 2011 | 52,427 | 2010 | 50,228 | 2009 | 47,975 | 2008 | 45,840 | 2007 | 44,215 | 2006 | 43,435 | 2005 | 43,245 | 2004 | 43,106 | 2003 | 42,755 | 2002 | 42,375 | 2001 | 42,892 | 2000 | 43,182 | 1999 | 43,350 | 1998 | 43,487 | 1997 | 43,441 | 1996 | 43,232 | 1995 | 42,301 | 1994 | 41,552 | 1993 | 41,528 | 1992 | 41,610 | 1991 | 41,107 | 1990 | 39,876 | 1989 | 38,320 | 1988 | 36,700 | 1987 | 35,140 | 1986 | 33,655 | 1985 | 32,224 | 1984 | 30,801 | 1983 | 29,311 | 1982 | 27,701 | 1981 | 25,968 | 1980 | 24,379 | 1979 | 23,298 | 1978 | 22,963 | 1977 | 23,525 | 1976 | 24,838 | 1975 | 26,498 | 1974 | 28,038 | 1973 | 28,989 | 1972 | 28,988 | 1971 | 28,182 | 1970 | 26,581 | 1969 | 24,244 | 1968 | 21,810 | 1967 | 19,747 | 1966 | 18,235 | 1965 | 17,294 | 1964 | 16,831 | 1963 | 16,668 | 1962 | 17,410 | 1961 | 17,687 | 1960 | 16,666 |
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