Year | Value | 2022 | 272,824 | 2021 | 271,018 | 2020 | 274,368 | 2019 | 282,182 | 2018 | 293,213 | 2017 | 305,560 | 2016 | 316,975 | 2015 | 326,064 | 2014 | 330,286 | 2013 | 328,671 | 2012 | 322,684 | 2011 | 313,433 | 2010 | 302,117 | 2009 | 290,119 | 2008 | 278,902 | 2007 | 269,626 | 2006 | 262,787 | 2005 | 258,561 | 2004 | 256,599 | 2003 | 254,997 | 2002 | 253,703 | 2001 | 253,297 | 2000 | 254,188 | 1999 | 258,035 | 1998 | 264,606 | 1997 | 271,968 | 1996 | 279,236 | 1995 | 284,064 | 1994 | 284,253 | 1993 | 283,779 | 1992 | 286,534 | 1991 | 290,844 | 1990 | 295,890 | 1989 | 301,695 | 1988 | 304,341 | 1987 | 300,753 | 1986 | 293,171 | 1985 | 284,181 | 1984 | 275,288 | 1983 | 269,537 | 1982 | 268,267 | 1981 | 269,519 | 1980 | 271,673 | 1979 | 273,082 | 1978 | 274,293 | 1977 | 275,568 | 1976 | 276,238 | 1975 | 278,577 | 1974 | 284,577 | 1973 | 293,326 | 1972 | 303,255 | 1971 | 313,891 | 1970 | 322,248 | 1969 | 326,144 | 1968 | 325,795 | 1967 | 320,090 | 1966 | 307,139 | 1965 | 289,003 | 1964 | 270,962 | 1963 | 255,022 | 1962 | 241,827 | 1961 | 233,244 | 1960 | 227,783 |
|