Year | Value | 2022 | 256,405 | 2021 | 259,275 | 2020 | 261,842 | 2019 | 262,407 | 2018 | 261,258 | 2017 | 261,712 | 2016 | 264,592 | 2015 | 271,086 | 2014 | 270,015 | 2013 | 249,634 | 2012 | 233,334 | 2011 | 233,604 | 2010 | 238,063 | 2009 | 242,731 | 2008 | 245,066 | 2007 | 244,505 | 2006 | 241,818 | 2005 | 238,842 | 2004 | 235,791 | 2003 | 233,044 | 2002 | 231,323 | 2001 | 229,391 | 2000 | 226,325 | 1999 | 222,292 | 1998 | 217,603 | 1997 | 213,134 | 1996 | 208,583 | 1995 | 203,699 | 1994 | 199,587 | 1993 | 196,464 | 1992 | 193,569 | 1991 | 190,877 | 1990 | 189,203 | 1989 | 187,833 | 1988 | 185,770 | 1987 | 183,298 | 1986 | 180,028 | 1985 | 177,150 | 1984 | 175,553 | 1983 | 174,620 | 1982 | 174,645 | 1981 | 174,044 | 1980 | 171,955 | 1979 | 169,336 | 1978 | 186,021 | 1977 | 201,776 | 1976 | 178,690 | 1975 | 156,423 | 1974 | 153,000 | 1973 | 149,051 | 1972 | 144,918 | 1971 | 140,638 | 1970 | 136,478 | 1969 | 130,425 | 1968 | 121,826 | 1967 | 112,529 | 1966 | 102,646 | 1965 | 92,455 | 1964 | 84,300 | 1963 | 78,601 | 1962 | 74,061 | 1961 | 70,740 | 1960 | 68,447 |
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