Year | Value | 2022 | 361,394 | 2021 | 355,366 | 2020 | 351,596 | 2019 | 352,827 | 2018 | 354,958 | 2017 | 357,221 | 2016 | 359,014 | 2015 | 359,897 | 2014 | 359,131 | 2013 | 357,616 | 2012 | 355,927 | 2011 | 352,466 | 2010 | 346,798 | 2009 | 341,069 | 2008 | 335,833 | 2007 | 330,725 | 2006 | 327,899 | 2005 | 325,845 | 2004 | 323,399 | 2003 | 322,433 | 2002 | 318,710 | 2001 | 310,402 | 2000 | 302,373 | 1999 | 294,704 | 1998 | 285,680 | 1997 | 277,497 | 1996 | 270,805 | 1995 | 263,789 | 1994 | 259,300 | 1993 | 258,849 | 1992 | 260,309 | 1991 | 264,172 | 1990 | 269,292 | 1989 | 271,578 | 1988 | 271,615 | 1987 | 272,652 | 1986 | 274,021 | 1985 | 274,290 | 1984 | 273,860 | 1983 | 272,957 | 1982 | 270,674 | 1981 | 268,096 | 1980 | 265,233 | 1979 | 262,378 | 1978 | 259,135 | 1977 | 255,329 | 1976 | 251,439 | 1975 | 243,952 | 1974 | 231,277 | 1973 | 220,941 | 1972 | 215,298 | 1971 | 211,392 | 1970 | 205,585 | 1969 | 206,111 | 1968 | 213,906 | 1967 | 219,966 | 1966 | 226,182 | 1965 | 233,217 | 1964 | 236,632 | 1963 | 235,213 | 1962 | 232,157 | 1961 | 226,944 | 1960 | 218,585 |
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