| Year | Value | | 2022 | 326,740 | | 2021 | 319,137 | | 2020 | 311,685 | | 2019 | 304,404 | | 2018 | 297,298 | | 2017 | 290,239 | | 2016 | 283,218 | | 2015 | 276,438 | | 2014 | 269,927 | | 2013 | 263,534 | | 2012 | 257,313 | | 2011 | 251,294 | | 2010 | 245,453 | | 2009 | 239,689 | | 2008 | 233,952 | | 2007 | 228,345 | | 2006 | 222,923 | | 2005 | 217,632 | | 2004 | 212,422 | | 2003 | 207,258 | | 2002 | 202,125 | | 2001 | 197,034 | | 2000 | 192,074 | | 1999 | 187,432 | | 1998 | 183,088 | | 1997 | 178,871 | | 1996 | 174,714 | | 1995 | 170,612 | | 1994 | 166,560 | | 1993 | 162,548 | | 1992 | 158,577 | | 1991 | 154,678 | | 1990 | 150,882 | | 1989 | 147,181 | | 1988 | 143,528 | | 1987 | 139,956 | | 1986 | 136,488 | | 1985 | 133,119 | | 1984 | 129,873 | | 1983 | 126,743 | | 1982 | 123,748 | | 1981 | 120,887 | | 1980 | 118,156 | | 1979 | 115,344 | | 1978 | 112,185 | | 1977 | 108,769 | | 1976 | 105,341 | | 1975 | 102,010 | | 1974 | 98,790 | | 1973 | 95,687 | | 1972 | 92,687 | | 1971 | 89,796 | | 1970 | 87,019 | | 1969 | 84,350 | | 1968 | 81,782 | | 1967 | 79,311 | | 1966 | 76,945 | | 1965 | 74,677 | | 1964 | 72,493 | | 1963 | 70,400 | | 1962 | 68,391 | | 1961 | 66,462 | | 1960 | 64,608 |
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