Year | Value | 2022 | 432,665 | 2021 | 427,816 | 2020 | 419,222 | 2019 | 411,133 | 2018 | 403,858 | 2017 | 398,475 | 2016 | 394,660 | 2015 | 393,623 | 2014 | 395,913 | 2013 | 399,218 | 2012 | 401,323 | 2011 | 402,071 | 2010 | 400,057 | 2009 | 394,307 | 2008 | 387,929 | 2007 | 382,226 | 2006 | 375,348 | 2005 | 369,040 | 2004 | 364,279 | 2003 | 359,015 | 2002 | 354,317 | 2001 | 351,454 | 2000 | 347,354 | 1999 | 342,429 | 1998 | 340,475 | 1997 | 336,974 | 1996 | 330,330 | 1995 | 326,211 | 1994 | 323,125 | 1993 | 316,919 | 1992 | 309,846 | 1991 | 302,794 | 1990 | 294,431 | 1989 | 289,108 | 1988 | 288,706 | 1987 | 291,135 | 1986 | 296,793 | 1985 | 303,376 | 1984 | 306,138 | 1983 | 306,581 | 1982 | 307,818 | 1981 | 308,393 | 1980 | 307,199 | 1979 | 304,977 | 1978 | 302,981 | 1977 | 299,836 | 1976 | 297,672 | 1975 | 290,141 | 1974 | 280,300 | 1973 | 276,540 | 1972 | 275,359 | 1971 | 273,937 | 1970 | 273,384 | 1969 | 269,302 | 1968 | 260,979 | 1967 | 254,552 | 1966 | 250,632 | 1965 | 246,302 | 1964 | 248,022 | 1963 | 255,999 | 1962 | 261,990 | 1961 | 266,414 | 1960 | 271,815 |
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