| Year | Value | | 2022 | 121,666 | | 2021 | 124,586 | | 2020 | 129,016 | | 2019 | 132,842 | | 2018 | 135,004 | | 2017 | 134,964 | | 2016 | 133,651 | | 2015 | 131,876 | | 2014 | 130,162 | | 2013 | 128,653 | | 2012 | 126,974 | | 2011 | 124,791 | | 2010 | 121,976 | | 2009 | 118,334 | | 2008 | 114,751 | | 2007 | 111,675 | | 2006 | 110,209 | | 2005 | 109,861 | | 2004 | 110,555 | | 2003 | 112,586 | | 2002 | 115,914 | | 2001 | 120,117 | | 2000 | 125,641 | | 1999 | 132,483 | | 1998 | 140,654 | | 1997 | 150,847 | | 1996 | 164,069 | | 1995 | 179,633 | | 1994 | 195,142 | | 1993 | 204,431 | | 1992 | 207,431 | | 1991 | 209,022 | | 1990 | 209,163 | | 1989 | 209,815 | | 1988 | 210,348 | | 1987 | 209,176 | | 1986 | 207,111 | | 1985 | 204,741 | | 1984 | 202,540 | | 1983 | 200,486 | | 1982 | 198,056 | | 1981 | 195,579 | | 1980 | 193,604 | | 1979 | 191,207 | | 1978 | 189,056 | | 1977 | 188,386 | | 1976 | 188,092 | | 1975 | 187,504 | | 1974 | 186,911 | | 1973 | 187,012 | | 1972 | 188,063 | | 1971 | 189,616 | | 1970 | 193,745 | | 1969 | 199,375 | | 1968 | 203,390 | | 1967 | 205,935 | | 1966 | 207,511 | | 1965 | 210,472 | | 1964 | 213,541 | | 1963 | 213,652 | | 1962 | 211,558 | | 1961 | 207,743 | | 1960 | 202,323 |
|