Year | Value | 2022 | 250,595 | 2021 | 259,014 | 2020 | 263,141 | 2019 | 264,895 | 2018 | 265,048 | 2017 | 263,267 | 2016 | 258,766 | 2015 | 252,916 | 2014 | 248,935 | 2013 | 246,274 | 2012 | 244,204 | 2011 | 244,223 | 2010 | 246,800 | 2009 | 246,990 | 2008 | 246,564 | 2007 | 247,128 | 2006 | 248,440 | 2005 | 251,271 | 2004 | 253,781 | 2003 | 254,288 | 2002 | 252,178 | 2001 | 249,224 | 2000 | 246,635 | 1999 | 247,138 | 1998 | 251,413 | 1997 | 260,076 | 1996 | 268,325 | 1995 | 275,969 | 1994 | 289,258 | 1993 | 293,329 | 1992 | 291,365 | 1991 | 289,422 | 1990 | 285,154 | 1989 | 272,737 | 1988 | 261,275 | 1987 | 253,478 | 1986 | 249,191 | 1985 | 248,029 | 1984 | 251,137 | 1983 | 256,963 | 1982 | 263,800 | 1981 | 270,524 | 1980 | 277,107 | 1979 | 284,156 | 1978 | 290,229 | 1977 | 295,064 | 1976 | 298,289 | 1975 | 299,275 | 1974 | 298,717 | 1973 | 295,832 | 1972 | 290,451 | 1971 | 282,258 | 1970 | 271,735 | 1969 | 260,479 | 1968 | 248,720 | 1967 | 237,252 | 1966 | 226,341 | 1965 | 214,397 | 1964 | 199,839 | 1963 | 180,917 | 1962 | 158,458 | 1961 | 135,714 | 1960 | 119,180 |
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