Year | Value | 2022 | 296,596 | 2021 | 302,583 | 2020 | 310,254 | 2019 | 318,723 | 2018 | 328,827 | 2017 | 337,830 | 2016 | 344,278 | 2015 | 349,170 | 2014 | 352,086 | 2013 | 353,069 | 2012 | 352,808 | 2011 | 350,989 | 2010 | 346,992 | 2009 | 340,330 | 2008 | 331,115 | 2007 | 321,217 | 2006 | 312,438 | 2005 | 303,232 | 2004 | 292,735 | 2003 | 282,679 | 2002 | 273,917 | 2001 | 264,580 | 2000 | 256,973 | 1999 | 253,978 | 1998 | 254,495 | 1997 | 257,576 | 1996 | 257,897 | 1995 | 250,461 | 1994 | 244,074 | 1993 | 241,535 | 1992 | 236,578 | 1991 | 239,259 | 1990 | 256,586 | 1989 | 273,001 | 1988 | 274,039 | 1987 | 264,678 | 1986 | 249,094 | 1985 | 227,186 | 1984 | 204,759 | 1983 | 193,594 | 1982 | 195,209 | 1981 | 199,922 | 1980 | 205,752 | 1979 | 212,074 | 1978 | 217,773 | 1977 | 222,515 | 1976 | 227,498 | 1975 | 234,791 | 1974 | 244,379 | 1973 | 255,061 | 1972 | 265,817 | 1971 | 275,228 | 1970 | 280,316 | 1969 | 276,227 | 1968 | 258,262 | 1967 | 231,544 | 1966 | 204,771 | 1965 | 184,132 | 1964 | 180,683 | 1963 | 196,782 | 1962 | 222,166 | 1961 | 247,197 | 1960 | 267,645 |
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