Year | Value | 2022 | 298,157 | 2021 | 302,133 | 2020 | 306,172 | 2019 | 308,486 | 2018 | 308,916 | 2017 | 307,375 | 2016 | 302,679 | 2015 | 294,136 | 2014 | 285,644 | 2013 | 280,290 | 2012 | 277,749 | 2011 | 277,851 | 2010 | 278,314 | 2009 | 277,425 | 2008 | 274,295 | 2007 | 269,069 | 2006 | 263,442 | 2005 | 258,758 | 2004 | 256,098 | 2003 | 256,668 | 2002 | 260,589 | 2001 | 267,769 | 2000 | 277,516 | 1999 | 290,116 | 1998 | 305,949 | 1997 | 321,914 | 1996 | 335,493 | 1995 | 347,489 | 1994 | 356,792 | 1993 | 360,597 | 1992 | 358,842 | 1991 | 353,557 | 1990 | 345,142 | 1989 | 334,519 | 1988 | 323,899 | 1987 | 315,034 | 1986 | 306,262 | 1985 | 296,222 | 1984 | 285,939 | 1983 | 276,360 | 1982 | 268,663 | 1981 | 260,797 | 1980 | 255,504 | 1979 | 256,189 | 1978 | 260,927 | 1977 | 267,707 | 1976 | 271,011 | 1975 | 266,430 | 1974 | 262,922 | 1973 | 259,919 | 1972 | 251,353 | 1971 | 252,289 | 1970 | 271,674 | 1969 | 291,637 | 1968 | 295,188 | 1967 | 286,202 | 1966 | 268,544 | 1965 | 242,934 | 1964 | 216,311 | 1963 | 202,279 | 1962 | 202,061 | 1961 | 206,362 | 1960 | 213,231 |
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