Year | Value | 2022 | 211,540 | 2021 | 230,027 | 2020 | 237,351 | 2019 | 240,249 | 2018 | 240,330 | 2017 | 241,202 | 2016 | 242,507 | 2015 | 243,586 | 2014 | 245,597 | 2013 | 248,658 | 2012 | 250,357 | 2011 | 249,201 | 2010 | 248,053 | 2009 | 249,141 | 2008 | 250,687 | 2007 | 252,229 | 2006 | 254,525 | 2005 | 254,455 | 2004 | 249,191 | 2003 | 240,457 | 2002 | 231,001 | 2001 | 225,151 | 2000 | 220,276 | 1999 | 215,202 | 1998 | 213,525 | 1997 | 214,814 | 1996 | 218,481 | 1995 | 224,826 | 1994 | 233,878 | 1993 | 243,580 | 1992 | 252,849 | 1991 | 259,995 | 1990 | 264,026 | 1989 | 267,976 | 1988 | 269,213 | 1987 | 267,521 | 1986 | 267,257 | 1985 | 269,111 | 1984 | 271,970 | 1983 | 273,265 | 1982 | 272,083 | 1981 | 268,802 | 1980 | 262,743 | 1979 | 251,218 | 1978 | 235,082 | 1977 | 216,835 | 1976 | 198,543 | 1975 | 184,410 | 1974 | 179,272 | 1973 | 183,859 | 1972 | 193,286 | 1971 | 203,966 | 1970 | 214,744 | 1969 | 222,507 | 1968 | 225,853 | 1967 | 227,627 | 1966 | 227,799 | 1965 | 224,725 | 1964 | 219,751 | 1963 | 214,027 | 1962 | 207,648 | 1961 | 200,869 | 1960 | 193,309 |
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