Year | Value | 2022 | 64,522 | 2021 | 61,864 | 2020 | 59,165 | 2019 | 57,160 | 2018 | 54,918 | 2017 | 52,849 | 2016 | 51,750 | 2015 | 50,544 | 2014 | 49,220 | 2013 | 47,877 | 2012 | 46,629 | 2011 | 45,802 | 2010 | 45,884 | 2009 | 47,020 | 2008 | 48,934 | 2007 | 51,147 | 2006 | 53,106 | 2005 | 54,264 | 2004 | 54,334 | 2003 | 53,312 | 2002 | 51,479 | 2001 | 49,558 | 2000 | 48,217 | 1999 | 47,416 | 1998 | 46,691 | 1997 | 45,900 | 1996 | 45,014 | 1995 | 43,722 | 1994 | 41,996 | 1993 | 40,270 | 1992 | 38,699 | 1991 | 37,063 | 1990 | 35,331 | 1989 | 33,603 | 1988 | 31,921 | 1987 | 30,270 | 1986 | 28,684 | 1985 | 27,215 | 1984 | 25,934 | 1983 | 24,854 | 1982 | 23,958 | 1981 | 23,223 | 1980 | 22,609 | 1979 | 22,122 | 1978 | 21,769 | 1977 | 21,521 | 1976 | 21,355 | 1975 | 21,223 | 1974 | 21,069 | 1973 | 20,912 | 1972 | 20,807 | 1971 | 20,773 | 1970 | 20,834 | 1969 | 20,988 | 1968 | 21,165 | 1967 | 21,342 | 1966 | 21,526 | 1965 | 21,705 | 1964 | 21,867 | 1963 | 21,986 | 1962 | 22,035 | 1961 | 22,028 | 1960 | 21,985 |
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