Year | Value | 2022 | 174,782 | 2021 | 175,352 | 2020 | 175,959 | 2019 | 175,317 | 2018 | 173,268 | 2017 | 169,749 | 2016 | 164,520 | 2015 | 158,124 | 2014 | 151,704 | 2013 | 145,674 | 2012 | 139,666 | 2011 | 133,120 | 2010 | 126,119 | 2009 | 118,600 | 2008 | 110,508 | 2007 | 102,559 | 2006 | 95,149 | 2005 | 88,626 | 2004 | 83,673 | 2003 | 80,441 | 2002 | 77,732 | 2001 | 73,875 | 2000 | 68,517 | 1999 | 62,342 | 1998 | 56,094 | 1997 | 51,967 | 1996 | 46,142 | 1995 | 40,011 | 1994 | 53,046 | 1993 | 67,771 | 1992 | 68,823 | 1991 | 70,394 | 1990 | 71,649 | 1989 | 72,305 | 1988 | 72,307 | 1987 | 71,449 | 1986 | 70,207 | 1985 | 68,841 | 1984 | 67,131 | 1983 | 65,002 | 1982 | 62,400 | 1981 | 59,257 | 1980 | 55,866 | 1979 | 52,570 | 1978 | 49,347 | 1977 | 46,385 | 1976 | 43,965 | 1975 | 42,286 | 1974 | 41,339 | 1973 | 41,149 | 1972 | 41,513 | 1971 | 41,895 | 1970 | 41,958 | 1969 | 41,781 | 1968 | 41,433 | 1967 | 40,690 | 1966 | 39,671 | 1965 | 38,612 | 1964 | 37,457 | 1963 | 36,171 | 1962 | 34,986 | 1961 | 34,063 | 1960 | 33,426 |
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