Year | Value | 2022 | 52,631 | 2021 | 53,088 | 2020 | 53,976 | 2019 | 55,086 | 2018 | 56,860 | 2017 | 59,489 | 2016 | 61,948 | 2015 | 63,959 | 2014 | 65,807 | 2013 | 67,071 | 2012 | 68,069 | 2011 | 69,542 | 2010 | 71,436 | 2009 | 72,963 | 2008 | 73,764 | 2007 | 74,707 | 2006 | 74,975 | 2005 | 74,857 | 2004 | 74,256 | 2003 | 73,585 | 2002 | 72,970 | 2001 | 72,140 | 2000 | 71,098 | 1999 | 70,286 | 1998 | 70,233 | 1997 | 71,135 | 1996 | 72,795 | 1995 | 74,910 | 1994 | 76,816 | 1993 | 78,250 | 1992 | 79,106 | 1991 | 79,216 | 1990 | 78,607 | 1989 | 77,989 | 1988 | 77,862 | 1987 | 78,112 | 1986 | 78,180 | 1985 | 78,442 | 1984 | 79,449 | 1983 | 80,536 | 1982 | 81,189 | 1981 | 81,477 | 1980 | 81,296 | 1979 | 80,007 | 1978 | 77,882 | 1977 | 75,341 | 1976 | 72,232 | 1975 | 67,122 | 1974 | 62,251 | 1973 | 60,242 | 1972 | 59,497 | 1971 | 59,280 | 1970 | 60,745 | 1969 | 62,879 | 1968 | 63,215 | 1967 | 62,296 | 1966 | 61,669 | 1965 | 61,431 | 1964 | 61,574 | 1963 | 62,296 | 1962 | 63,544 | 1961 | 65,023 | 1960 | 66,741 |
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