Year | Value | 2022 | 227,403 | 2021 | 227,637 | 2020 | 228,026 | 2019 | 227,876 | 2018 | 227,252 | 2017 | 225,408 | 2016 | 222,699 | 2015 | 220,482 | 2014 | 220,662 | 2013 | 223,416 | 2012 | 227,569 | 2011 | 232,972 | 2010 | 237,187 | 2009 | 238,206 | 2008 | 236,627 | 2007 | 235,163 | 2006 | 233,677 | 2005 | 232,709 | 2004 | 232,490 | 2003 | 232,651 | 2002 | 233,441 | 2001 | 236,236 | 2000 | 241,867 | 1999 | 249,831 | 1998 | 259,551 | 1997 | 269,739 | 1996 | 280,296 | 1995 | 289,058 | 1994 | 294,482 | 1993 | 297,866 | 1992 | 300,161 | 1991 | 300,843 | 1990 | 301,035 | 1989 | 304,354 | 1988 | 307,858 | 1987 | 309,864 | 1986 | 314,684 | 1985 | 322,317 | 1984 | 334,889 | 1983 | 352,520 | 1982 | 372,153 | 1981 | 391,587 | 1980 | 410,660 | 1979 | 425,918 | 1978 | 428,339 | 1977 | 419,114 | 1976 | 404,445 | 1975 | 385,868 | 1974 | 367,713 | 1973 | 359,292 | 1972 | 357,680 | 1971 | 353,049 | 1970 | 345,066 | 1969 | 335,234 | 1968 | 324,532 | 1967 | 314,565 | 1966 | 310,205 | 1965 | 313,297 | 1964 | 320,459 | 1963 | 330,642 | 1962 | 344,778 | 1961 | 364,598 | 1960 | 390,036 |
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