| Year | Value | | 2022 | 255,014 | | 2021 | 244,446 | | 2020 | 235,304 | | 2019 | 228,035 | | 2018 | 222,519 | | 2017 | 218,400 | | 2016 | 215,307 | | 2015 | 212,810 | | 2014 | 210,383 | | 2013 | 207,704 | | 2012 | 204,790 | | 2011 | 201,765 | | 2010 | 198,959 | | 2009 | 196,839 | | 2008 | 195,356 | | 2007 | 194,247 | | 2006 | 193,156 | | 2005 | 191,302 | | 2004 | 188,024 | | 2003 | 182,926 | | 2002 | 175,553 | | 2001 | 166,057 | | 2000 | 155,126 | | 1999 | 144,601 | | 1998 | 135,677 | | 1997 | 128,419 | | 1996 | 122,355 | | 1995 | 117,045 | | 1994 | 112,436 | | 1993 | 107,933 | | 1992 | 103,368 | | 1991 | 96,494 | | 1990 | 86,814 | | 1989 | 75,894 | | 1988 | 67,087 | | 1987 | 63,554 | | 1986 | 65,239 | | 1985 | 71,425 | | 1984 | 79,396 | | 1983 | 87,564 | | 1982 | 94,712 | | 1981 | 99,781 | | 1980 | 102,079 | | 1979 | 101,993 | | 1978 | 99,948 | | 1977 | 96,512 | | 1976 | 93,650 | | 1975 | 91,723 | | 1974 | 90,317 | | 1973 | 89,360 | | 1972 | 88,660 | | 1971 | 87,252 | | 1970 | 84,655 | | 1969 | 81,095 | | 1968 | 76,739 | | 1967 | 71,787 | | 1966 | 66,806 | | 1965 | 62,184 | | 1964 | 57,844 | | 1963 | 53,639 | | 1962 | 49,999 | | 1961 | 47,553 | | 1960 | 46,519 |
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