Year | Value | 2022 | 68,688 | 2021 | 67,839 | 2020 | 67,252 | 2019 | 66,577 | 2018 | 66,743 | 2017 | 66,706 | 2016 | 65,589 | 2015 | 63,945 | 2014 | 61,923 | 2013 | 60,489 | 2012 | 60,796 | 2011 | 63,069 | 2010 | 67,069 | 2009 | 71,786 | 2008 | 75,957 | 2007 | 78,822 | 2006 | 80,083 | 2005 | 80,065 | 2004 | 79,051 | 2003 | 77,228 | 2002 | 75,240 | 2001 | 73,848 | 2000 | 73,450 | 1999 | 73,853 | 1998 | 74,943 | 1997 | 76,442 | 1996 | 77,916 | 1995 | 79,221 | 1994 | 80,245 | 1993 | 80,802 | 1992 | 80,774 | 1991 | 79,048 | 1990 | 75,292 | 1989 | 70,497 | 1988 | 64,821 | 1987 | 58,774 | 1986 | 53,800 | 1985 | 51,319 | 1984 | 51,585 | 1983 | 54,001 | 1982 | 58,013 | 1981 | 62,684 | 1980 | 66,604 | 1979 | 68,977 | 1978 | 69,955 | 1977 | 70,012 | 1976 | 69,739 | 1975 | 69,433 | 1974 | 68,956 | 1973 | 68,322 | 1972 | 67,720 | 1971 | 67,064 | 1970 | 66,366 | 1969 | 65,582 | 1968 | 64,413 | 1967 | 62,853 | 1966 | 61,238 | 1965 | 59,527 | 1964 | 57,562 | 1963 | 55,679 | 1962 | 54,105 | 1961 | 52,785 | 1960 | 51,672 |
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