| Year | Value | | 2022 | 304,152 | | 2021 | 300,620 | | 2020 | 297,641 | | 2019 | 294,537 | | 2018 | 290,055 | | 2017 | 286,139 | | 2016 | 284,769 | | 2015 | 283,411 | | 2014 | 280,779 | | 2013 | 277,777 | | 2012 | 273,474 | | 2011 | 267,772 | | 2010 | 261,024 | | 2009 | 252,693 | | 2008 | 242,103 | | 2007 | 232,740 | | 2006 | 222,881 | | 2005 | 214,307 | | 2004 | 208,315 | | 2003 | 203,886 | | 2002 | 201,045 | | 2001 | 198,884 | | 2000 | 196,827 | | 1999 | 194,853 | | 1998 | 192,826 | | 1997 | 191,211 | | 1996 | 188,992 | | 1995 | 185,716 | | 1994 | 181,578 | | 1993 | 178,659 | | 1992 | 176,872 | | 1991 | 173,968 | | 1990 | 166,096 | | 1989 | 162,796 | | 1988 | 160,022 | | 1987 | 155,825 | | 1986 | 152,215 | | 1985 | 147,308 | | 1984 | 139,336 | | 1983 | 130,866 | | 1982 | 120,445 | | 1981 | 108,583 | | 1980 | 98,627 | | 1979 | 92,001 | | 1978 | 87,881 | | 1977 | 85,954 | | 1976 | 85,354 | | 1975 | 85,473 | | 1974 | 85,629 | | 1973 | 85,199 | | 1972 | 83,873 | | 1971 | 83,741 | | 1970 | 82,951 | | 1969 | 81,950 | | 1968 | 81,557 | | 1967 | 81,565 | | 1966 | 79,981 | | 1965 | 80,236 | | 1964 | 79,868 | | 1963 | 78,899 | | 1962 | 77,734 | | 1961 | 74,958 | | 1960 | 72,459 |
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