Year | Value | 2022 | 397,237 | 2021 | 396,673 | 2020 | 398,939 | 2019 | 403,326 | 2018 | 408,453 | 2017 | 412,032 | 2016 | 413,791 | 2015 | 412,602 | 2014 | 408,775 | 2013 | 404,780 | 2012 | 400,845 | 2011 | 395,752 | 2010 | 387,469 | 2009 | 380,444 | 2008 | 373,482 | 2007 | 367,077 | 2006 | 360,745 | 2005 | 354,975 | 2004 | 350,934 | 2003 | 348,578 | 2002 | 347,149 | 2001 | 347,374 | 2000 | 343,774 | 1999 | 334,522 | 1998 | 323,434 | 1997 | 307,541 | 1996 | 285,961 | 1995 | 270,111 | 1994 | 264,348 | 1993 | 262,493 | 1992 | 265,289 | 1991 | 272,370 | 1990 | 278,611 | 1989 | 281,022 | 1988 | 281,426 | 1987 | 283,790 | 1986 | 289,980 | 1985 | 297,508 | 1984 | 302,984 | 1983 | 305,786 | 1982 | 306,682 | 1981 | 305,838 | 1980 | 304,992 | 1979 | 305,846 | 1978 | 308,471 | 1977 | 310,759 | 1976 | 312,552 | 1975 | 313,944 | 1974 | 307,383 | 1973 | 286,299 | 1972 | 258,696 | 1971 | 233,389 | 1970 | 214,037 | 1969 | 210,755 | 1968 | 227,145 | 1967 | 251,763 | 1966 | 272,724 | 1965 | 286,448 | 1964 | 291,932 | 1963 | 292,757 | 1962 | 294,011 | 1961 | 297,529 | 1960 | 301,412 |
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