Year | Value | 2022 | 229,484 | 2021 | 226,099 | 2020 | 226,080 | 2019 | 225,994 | 2018 | 225,188 | 2017 | 223,988 | 2016 | 222,195 | 2015 | 221,005 | 2014 | 222,937 | 2013 | 229,895 | 2012 | 242,417 | 2011 | 259,096 | 2010 | 277,876 | 2009 | 298,691 | 2008 | 320,851 | 2007 | 342,332 | 2006 | 362,811 | 2005 | 380,342 | 2004 | 392,422 | 2003 | 400,361 | 2002 | 404,645 | 2001 | 403,113 | 2000 | 398,727 | 1999 | 394,474 | 1998 | 388,795 | 1997 | 382,877 | 1996 | 377,682 | 1995 | 372,699 | 1994 | 368,193 | 1993 | 363,218 | 1992 | 358,335 | 1991 | 356,576 | 1990 | 357,311 | 1989 | 357,764 | 1988 | 357,395 | 1987 | 356,837 | 1986 | 355,128 | 1985 | 355,152 | 1984 | 358,780 | 1983 | 368,093 | 1982 | 382,662 | 1981 | 399,170 | 1980 | 414,491 | 1979 | 426,855 | 1978 | 434,568 | 1977 | 437,688 | 1976 | 438,129 | 1975 | 437,225 | 1974 | 434,495 | 1973 | 428,219 | 1972 | 418,222 | 1971 | 406,089 | 1970 | 393,514 | 1969 | 382,739 | 1968 | 374,156 | 1967 | 364,293 | 1966 | 350,452 | 1965 | 332,353 | 1964 | 311,005 | 1963 | 291,144 | 1962 | 280,668 | 1961 | 284,348 | 1960 | 301,847 |
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