Year | Value | 2022 | 304,293 | 2021 | 311,342 | 2020 | 318,202 | 2019 | 325,697 | 2018 | 332,834 | 2017 | 343,834 | 2016 | 357,906 | 2015 | 372,007 | 2014 | 385,182 | 2013 | 396,626 | 2012 | 403,023 | 2011 | 404,499 | 2010 | 401,187 | 2009 | 394,751 | 2008 | 389,492 | 2007 | 384,649 | 2006 | 380,131 | 2005 | 377,976 | 2004 | 378,518 | 2003 | 379,284 | 2002 | 378,972 | 2001 | 377,315 | 2000 | 373,157 | 1999 | 366,609 | 1998 | 359,747 | 1997 | 354,104 | 1996 | 347,830 | 1995 | 340,892 | 1994 | 335,306 | 1993 | 330,366 | 1992 | 325,770 | 1991 | 324,058 | 1990 | 323,903 | 1989 | 322,768 | 1988 | 322,293 | 1987 | 319,920 | 1986 | 313,049 | 1985 | 305,180 | 1984 | 296,684 | 1983 | 287,022 | 1982 | 278,351 | 1981 | 270,770 | 1980 | 263,639 | 1979 | 258,954 | 1978 | 257,121 | 1977 | 257,367 | 1976 | 260,940 | 1975 | 259,697 | 1974 | 253,868 | 1973 | 253,313 | 1972 | 257,160 | 1971 | 261,775 | 1970 | 267,321 | 1969 | 273,045 | 1968 | 278,234 | 1967 | 280,777 | 1966 | 283,148 | 1965 | 286,327 | 1964 | 289,065 | 1963 | 290,448 | 1962 | 289,712 | 1961 | 287,366 | 1960 | 285,610 |
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