Year | Value | 2022 | 274,348 | 2021 | 274,069 | 2020 | 272,014 | 2019 | 266,613 | 2018 | 258,467 | 2017 | 248,698 | 2016 | 237,634 | 2015 | 226,677 | 2014 | 217,235 | 2013 | 209,373 | 2012 | 202,749 | 2011 | 197,706 | 2010 | 193,854 | 2009 | 190,314 | 2008 | 187,224 | 2007 | 184,624 | 2006 | 181,688 | 2005 | 178,137 | 2004 | 174,482 | 2003 | 171,230 | 2002 | 168,419 | 2001 | 166,376 | 2000 | 165,716 | 1999 | 166,361 | 1998 | 167,730 | 1997 | 169,417 | 1996 | 171,153 | 1995 | 171,305 | 1994 | 169,079 | 1993 | 165,020 | 1992 | 159,117 | 1991 | 151,762 | 1990 | 143,586 | 1989 | 135,186 | 1988 | 126,635 | 1987 | 118,391 | 1986 | 111,080 | 1985 | 104,536 | 1984 | 98,424 | 1983 | 91,788 | 1982 | 84,291 | 1981 | 76,468 | 1980 | 68,678 | 1979 | 61,916 | 1978 | 57,768 | 1977 | 56,300 | 1976 | 56,685 | 1975 | 58,586 | 1974 | 61,643 | 1973 | 65,857 | 1972 | 70,333 | 1971 | 73,560 | 1970 | 74,980 | 1969 | 74,635 | 1968 | 72,160 | 1967 | 68,217 | 1966 | 64,794 | 1965 | 62,782 | 1964 | 61,805 | 1963 | 61,846 | 1962 | 62,575 | 1961 | 62,690 | 1960 | 61,490 |
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