Year | Value | 2022 | 298,959 | 2021 | 300,941 | 2020 | 304,657 | 2019 | 309,378 | 2018 | 315,314 | 2017 | 321,488 | 2016 | 327,006 | 2015 | 332,056 | 2014 | 336,258 | 2013 | 338,120 | 2012 | 337,003 | 2011 | 332,850 | 2010 | 325,549 | 2009 | 316,172 | 2008 | 305,231 | 2007 | 295,268 | 2006 | 287,894 | 2005 | 281,515 | 2004 | 274,672 | 2003 | 267,680 | 2002 | 261,085 | 2001 | 254,836 | 2000 | 250,869 | 1999 | 249,701 | 1998 | 250,211 | 1997 | 252,033 | 1996 | 254,693 | 1995 | 256,326 | 1994 | 255,992 | 1993 | 254,422 | 1992 | 251,223 | 1991 | 245,731 | 1990 | 237,302 | 1989 | 227,909 | 1988 | 218,871 | 1987 | 210,601 | 1986 | 204,544 | 1985 | 201,582 | 1984 | 200,138 | 1983 | 198,720 | 1982 | 197,393 | 1981 | 195,708 | 1980 | 193,554 | 1979 | 191,226 | 1978 | 188,891 | 1977 | 186,993 | 1976 | 185,906 | 1975 | 184,960 | 1974 | 183,369 | 1973 | 182,392 | 1972 | 182,117 | 1971 | 182,185 | 1970 | 182,168 | 1969 | 179,158 | 1968 | 173,107 | 1967 | 166,300 | 1966 | 159,760 | 1965 | 153,845 | 1964 | 152,675 | 1963 | 156,320 | 1962 | 160,923 | 1961 | 164,966 | 1960 | 168,424 |
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