Year | Value | 2022 | 170,885 | 2021 | 167,820 | 2020 | 164,982 | 2019 | 158,381 | 2018 | 151,406 | 2017 | 144,596 | 2016 | 138,714 | 2015 | 134,051 | 2014 | 131,399 | 2013 | 131,739 | 2012 | 135,212 | 2011 | 139,783 | 2010 | 144,160 | 2009 | 147,153 | 2008 | 149,065 | 2007 | 149,817 | 2006 | 149,194 | 2005 | 147,940 | 2004 | 147,621 | 2003 | 147,742 | 2002 | 147,846 | 2001 | 148,707 | 2000 | 151,129 | 1999 | 152,389 | 1998 | 151,979 | 1997 | 149,497 | 1996 | 145,455 | 1995 | 140,644 | 1994 | 136,049 | 1993 | 132,067 | 1992 | 128,884 | 1991 | 126,362 | 1990 | 119,295 | 1989 | 117,930 | 1988 | 118,765 | 1987 | 119,789 | 1986 | 118,809 | 1985 | 117,644 | 1984 | 114,355 | 1983 | 109,092 | 1982 | 102,497 | 1981 | 97,666 | 1980 | 95,411 | 1979 | 94,213 | 1978 | 93,592 | 1977 | 92,210 | 1976 | 89,514 | 1975 | 85,494 | 1974 | 81,159 | 1973 | 78,151 | 1972 | 76,487 | 1971 | 76,002 | 1970 | 76,635 | 1969 | 78,057 | 1968 | 80,217 | 1967 | 82,451 | 1966 | 83,444 | 1965 | 83,556 | 1964 | 83,341 | 1963 | 82,710 | 1962 | 81,886 | 1961 | 80,118 | 1960 | 78,494 |
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