| Year | Value | | 2022 | 121,421 | | 2021 | 121,409 | | 2020 | 134,471 | | 2019 | 147,458 | | 2018 | 161,751 | | 2017 | 177,869 | | 2016 | 193,468 | | 2015 | 201,679 | | 2014 | 202,839 | | 2013 | 201,494 | | 2012 | 202,441 | | 2011 | 204,692 | | 2010 | 205,855 | | 2009 | 200,808 | | 2008 | 189,221 | | 2007 | 175,037 | | 2006 | 166,290 | | 2005 | 160,005 | | 2004 | 152,564 | | 2003 | 146,681 | | 2002 | 147,539 | | 2001 | 147,625 | | 2000 | 145,173 | | 1999 | 140,921 | | 1998 | 136,526 | | 1997 | 130,639 | | 1996 | 127,732 | | 1995 | 126,083 | | 1994 | 126,005 | | 1993 | 125,315 | | 1992 | 125,687 | | 1991 | 126,528 | | 1990 | 128,664 | | 1989 | 129,265 | | 1988 | 129,680 | | 1987 | 129,136 | | 1986 | 128,782 | | 1985 | 131,075 | | 1984 | 136,444 | | 1983 | 142,048 | | 1982 | 148,232 | | 1981 | 148,323 | | 1980 | 146,850 | | 1979 | 149,698 | | 1978 | 151,560 | | 1977 | 153,031 | | 1976 | 153,241 | | 1975 | 151,487 | | 1974 | 148,393 | | 1973 | 144,744 | | 1972 | 139,861 | | 1971 | 134,233 | | 1970 | 128,796 | | 1969 | 123,447 | | 1968 | 117,456 | | 1967 | 111,445 | | 1966 | 104,330 | | 1965 | 95,620 | | 1964 | 87,266 | | 1963 | 80,432 | | 1962 | 75,153 | | 1961 | 71,427 | | 1960 | 68,892 |
|