Year | Value | 2022 | 70,662 | 2021 | 71,624 | 2020 | 73,161 | 2019 | 74,398 | 2018 | 75,105 | 2017 | 75,362 | 2016 | 75,336 | 2015 | 75,105 | 2014 | 74,720 | 2013 | 74,379 | 2012 | 74,391 | 2011 | 74,691 | 2010 | 75,108 | 2009 | 75,593 | 2008 | 75,809 | 2007 | 76,123 | 2006 | 75,276 | 2005 | 74,312 | 2004 | 73,044 | 2003 | 71,099 | 2002 | 68,860 | 2001 | 66,362 | 2000 | 62,260 | 1999 | 57,908 | 1998 | 56,050 | 1997 | 55,643 | 1996 | 55,609 | 1995 | 57,038 | 1994 | 58,946 | 1993 | 59,216 | 1992 | 58,607 | 1991 | 58,362 | 1990 | 58,413 | 1989 | 58,753 | 1988 | 59,611 | 1987 | 60,708 | 1986 | 61,254 | 1985 | 61,935 | 1984 | 62,780 | 1983 | 62,955 | 1982 | 62,823 | 1981 | 62,835 | 1980 | 62,609 | 1979 | 61,941 | 1978 | 61,474 | 1977 | 60,892 | 1976 | 59,763 | 1975 | 57,642 | 1974 | 54,768 | 1973 | 50,279 | 1972 | 44,091 | 1971 | 38,201 | 1970 | 34,173 | 1969 | 33,684 | 1968 | 36,878 | 1967 | 41,999 | 1966 | 47,062 | 1965 | 50,888 | 1964 | 52,702 | 1963 | 52,789 | 1962 | 52,309 | 1961 | 51,911 | 1960 | 51,452 |
|