Year | Value | 2022 | 273,247 | 2021 | 274,837 | 2020 | 276,231 | 2019 | 280,333 | 2018 | 283,143 | 2017 | 284,459 | 2016 | 285,332 | 2015 | 283,854 | 2014 | 280,743 | 2013 | 280,378 | 2012 | 283,190 | 2011 | 287,228 | 2010 | 290,772 | 2009 | 293,433 | 2008 | 295,396 | 2007 | 296,688 | 2006 | 297,717 | 2005 | 300,578 | 2004 | 308,108 | 2003 | 318,933 | 2002 | 331,459 | 2001 | 344,904 | 2000 | 354,800 | 1999 | 361,307 | 1998 | 367,881 | 1997 | 376,268 | 1996 | 387,473 | 1995 | 399,719 | 1994 | 410,867 | 1993 | 420,133 | 1992 | 427,077 | 1991 | 428,436 | 1990 | 424,568 | 1989 | 420,243 | 1988 | 417,167 | 1987 | 415,029 | 1986 | 414,426 | 1985 | 416,056 | 1984 | 419,385 | 1983 | 424,216 | 1982 | 429,160 | 1981 | 431,754 | 1980 | 429,302 | 1979 | 422,616 | 1978 | 415,998 | 1977 | 409,911 | 1976 | 403,343 | 1975 | 388,971 | 1974 | 371,858 | 1973 | 363,545 | 1972 | 361,288 | 1971 | 359,391 | 1970 | 356,418 | 1969 | 355,550 | 1968 | 357,655 | 1967 | 358,278 | 1966 | 360,339 | 1965 | 367,101 | 1964 | 372,893 | 1963 | 374,431 | 1962 | 373,919 | 1961 | 370,317 | 1960 | 360,686 |
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