| Year | Value | | 2022 | 159,630 | | 2021 | 167,206 | | 2020 | 171,837 | | 2019 | 181,452 | | 2018 | 196,318 | | 2017 | 210,214 | | 2016 | 223,453 | | 2015 | 236,056 | | 2014 | 234,497 | | 2013 | 211,468 | | 2012 | 192,331 | | 2011 | 187,193 | | 2010 | 185,522 | | 2009 | 183,562 | | 2008 | 180,124 | | 2007 | 175,754 | | 2006 | 170,960 | | 2005 | 166,750 | | 2004 | 163,030 | | 2003 | 159,526 | | 2002 | 156,503 | | 2001 | 153,388 | | 2000 | 149,715 | | 1999 | 145,746 | | 1998 | 141,527 | | 1997 | 137,268 | | 1996 | 133,020 | | 1995 | 128,743 | | 1994 | 124,602 | | 1993 | 120,708 | | 1992 | 116,926 | | 1991 | 113,324 | | 1990 | 110,484 | | 1989 | 106,606 | | 1988 | 100,643 | | 1987 | 93,766 | | 1986 | 85,911 | | 1985 | 77,906 | | 1984 | 71,926 | | 1983 | 68,098 | | 1982 | 65,661 | | 1981 | 63,922 | | 1980 | 62,317 | | 1979 | 61,432 | | 1978 | 68,906 | | 1977 | 76,924 | | 1976 | 70,336 | | 1975 | 63,969 | | 1974 | 64,642 | | 1973 | 64,825 | | 1972 | 64,817 | | 1971 | 64,694 | | 1970 | 64,566 | | 1969 | 64,329 | | 1968 | 63,778 | | 1967 | 63,036 | | 1966 | 61,973 | | 1965 | 60,480 | | 1964 | 58,658 | | 1963 | 56,469 | | 1962 | 53,936 | | 1961 | 51,090 | | 1960 | 48,052 |
|