Year | Value | 2022 | 70,671 | 2021 | 70,967 | 2020 | 70,368 | 2019 | 69,861 | 2018 | 67,768 | 2017 | 64,386 | 2016 | 61,768 | 2015 | 59,220 | 2014 | 56,935 | 2013 | 55,099 | 2012 | 53,833 | 2011 | 52,782 | 2010 | 51,613 | 2009 | 50,342 | 2008 | 49,079 | 2007 | 47,932 | 2006 | 47,209 | 2005 | 47,395 | 2004 | 48,639 | 2003 | 50,656 | 2002 | 52,960 | 2001 | 55,008 | 2000 | 56,262 | 1999 | 56,433 | 1998 | 55,493 | 1997 | 53,719 | 1996 | 51,852 | 1995 | 50,543 | 1994 | 49,742 | 1993 | 48,978 | 1992 | 48,128 | 1991 | 47,175 | 1990 | 45,825 | 1989 | 44,062 | 1988 | 42,322 | 1987 | 40,745 | 1986 | 39,084 | 1985 | 37,286 | 1984 | 35,532 | 1983 | 33,865 | 1982 | 32,221 | 1981 | 30,636 | 1980 | 29,152 | 1979 | 27,784 | 1978 | 26,562 | 1977 | 25,531 | 1976 | 24,686 | 1975 | 23,990 | 1974 | 23,455 | 1973 | 23,086 | 1972 | 22,835 | 1971 | 22,665 | 1970 | 22,550 | 1969 | 22,455 | 1968 | 22,375 | 1967 | 22,342 | 1966 | 22,382 | 1965 | 22,488 | 1964 | 22,647 | 1963 | 22,831 | 1962 | 23,025 | 1961 | 23,219 | 1960 | 23,366 |
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