Year | Value | 2022 | 219,109 | 2021 | 229,891 | 2020 | 229,763 | 2019 | 232,440 | 2018 | 236,889 | 2017 | 242,404 | 2016 | 249,740 | 2015 | 257,067 | 2014 | 263,490 | 2013 | 267,394 | 2012 | 265,282 | 2011 | 260,352 | 2010 | 257,896 | 2009 | 257,128 | 2008 | 258,750 | 2007 | 260,594 | 2006 | 259,244 | 2005 | 256,737 | 2004 | 254,809 | 2003 | 253,473 | 2002 | 256,226 | 2001 | 267,435 | 2000 | 278,605 | 1999 | 282,587 | 1998 | 284,450 | 1997 | 287,066 | 1996 | 289,688 | 1995 | 291,673 | 1994 | 293,812 | 1993 | 296,599 | 1992 | 300,365 | 1991 | 303,276 | 1990 | 306,507 | 1989 | 316,182 | 1988 | 325,824 | 1987 | 330,747 | 1986 | 335,914 | 1985 | 338,716 | 1984 | 333,866 | 1983 | 322,654 | 1982 | 309,996 | 1981 | 296,912 | 1980 | 284,951 | 1979 | 276,591 | 1978 | 273,072 | 1977 | 273,279 | 1976 | 276,136 | 1975 | 282,882 | 1974 | 292,808 | 1973 | 303,422 | 1972 | 312,554 | 1971 | 318,689 | 1970 | 321,517 | 1969 | 321,205 | 1968 | 319,429 | 1967 | 318,873 | 1966 | 320,926 | 1965 | 325,877 | 1964 | 332,915 | 1963 | 339,037 | 1962 | 341,240 | 1961 | 339,325 | 1960 | 333,235 |
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