Year | Value | 2022 | 171,239 | 2021 | 173,862 | 2020 | 174,472 | 2019 | 175,159 | 2018 | 176,869 | 2017 | 178,761 | 2016 | 181,414 | 2015 | 184,825 | 2014 | 180,622 | 2013 | 162,444 | 2012 | 146,899 | 2011 | 141,682 | 2010 | 138,592 | 2009 | 135,445 | 2008 | 131,732 | 2007 | 127,636 | 2006 | 123,310 | 2005 | 119,365 | 2004 | 113,983 | 2003 | 106,782 | 2002 | 99,181 | 2001 | 90,979 | 2000 | 82,542 | 1999 | 75,965 | 1998 | 71,507 | 1997 | 68,134 | 1996 | 65,798 | 1995 | 64,084 | 1994 | 62,985 | 1993 | 62,439 | 1992 | 62,202 | 1991 | 61,995 | 1990 | 61,760 | 1989 | 61,425 | 1988 | 60,909 | 1987 | 60,248 | 1986 | 59,222 | 1985 | 58,250 | 1984 | 57,619 | 1983 | 57,084 | 1982 | 56,757 | 1981 | 56,093 | 1980 | 54,777 | 1979 | 53,174 | 1978 | 57,266 | 1977 | 60,763 | 1976 | 52,512 | 1975 | 44,287 | 1974 | 41,337 | 1973 | 38,014 | 1972 | 34,754 | 1971 | 32,434 | 1970 | 31,469 | 1969 | 31,732 | 1968 | 33,205 | 1967 | 35,505 | 1966 | 37,463 | 1965 | 38,402 | 1964 | 38,468 | 1963 | 37,671 | 1962 | 36,163 | 1961 | 34,575 | 1960 | 33,354 |
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