Year | Value | 2023 | 243,238 | 2022 | 251,852 | 2021 | 260,291 | 2020 | 269,016 | 2019 | 276,982 | 2018 | 283,194 | 2017 | 289,148 | 2016 | 296,551 | 2015 | 302,701 | 2014 | 306,279 | 2013 | 307,732 | 2012 | 305,762 | 2011 | 301,024 | 2010 | 297,464 | 2009 | 298,844 | 2008 | 304,817 | 2007 | 313,819 | 2006 | 323,580 | 2005 | 332,502 | 2004 | 339,933 | 2003 | 345,744 | 2002 | 349,299 | 2001 | 349,940 | 2000 | 348,899 | 1999 | 348,415 | 1998 | 349,862 | 1997 | 354,594 | 1996 | 364,110 | 1995 | 379,125 | 1994 | 397,062 | 1993 | 414,488 | 1992 | 427,431 | 1991 | 432,763 | 1990 | 429,921 | 1989 | 421,339 | 1988 | 411,158 | 1987 | 400,864 | 1986 | 386,886 | 1985 | 370,563 | 1984 | 357,982 | 1983 | 350,143 | 1982 | 349,354 | 1981 | 361,642 | 1980 | 386,595 | 1979 | 417,536 | 1978 | 451,138 | 1977 | 484,987 | 1976 | 517,130 | 1975 | 545,551 |
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