Year | Value | 2022 | 235,488 | 2021 | 239,427 | 2020 | 241,669 | 2019 | 242,416 | 2018 | 242,488 | 2017 | 243,397 | 2016 | 245,051 | 2015 | 247,353 | 2014 | 249,588 | 2013 | 252,162 | 2012 | 254,601 | 2011 | 258,126 | 2010 | 264,815 | 2009 | 274,121 | 2008 | 285,287 | 2007 | 296,736 | 2006 | 303,045 | 2005 | 305,461 | 2004 | 307,839 | 2003 | 305,884 | 2002 | 299,134 | 2001 | 292,115 | 2000 | 283,328 | 1999 | 269,337 | 1998 | 257,087 | 1997 | 250,372 | 1996 | 248,546 | 1995 | 250,150 | 1994 | 258,400 | 1993 | 263,777 | 1992 | 268,524 | 1991 | 272,144 | 1990 | 276,670 | 1989 | 281,165 | 1988 | 284,667 | 1987 | 286,880 | 1986 | 287,352 | 1985 | 285,958 | 1984 | 284,190 | 1983 | 281,716 | 1982 | 278,718 | 1981 | 275,213 | 1980 | 271,153 | 1979 | 266,871 | 1978 | 261,058 | 1977 | 253,724 | 1976 | 244,633 | 1975 | 232,228 | 1974 | 215,633 | 1973 | 194,217 | 1972 | 169,527 | 1971 | 145,557 | 1970 | 128,304 | 1969 | 122,230 | 1968 | 127,937 | 1967 | 143,217 | 1966 | 163,168 | 1965 | 182,109 | 1964 | 197,033 | 1963 | 206,320 | 1962 | 211,004 | 1961 | 214,151 | 1960 | 214,533 |
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