| Year | Value | | 2022 | 186,252 | | 2021 | 187,273 | | 2020 | 188,455 | | 2019 | 189,663 | | 2018 | 190,438 | | 2017 | 190,711 | | 2016 | 190,524 | | 2015 | 189,588 | | 2014 | 188,076 | | 2013 | 186,378 | | 2012 | 184,375 | | 2011 | 182,176 | | 2010 | 180,353 | | 2009 | 178,915 | | 2008 | 177,310 | | 2007 | 175,564 | | 2006 | 174,002 | | 2005 | 172,452 | | 2004 | 170,772 | | 2003 | 169,255 | | 2002 | 167,928 | | 2001 | 166,535 | | 2000 | 165,065 | | 1999 | 163,531 | | 1998 | 161,975 | | 1997 | 160,483 | | 1996 | 159,091 | | 1995 | 158,039 | | 1994 | 157,311 | | 1993 | 156,565 | | 1992 | 155,756 | | 1991 | 154,944 | | 1990 | 153,868 | | 1989 | 152,562 | | 1988 | 151,326 | | 1987 | 149,944 | | 1986 | 148,239 | | 1985 | 146,272 | | 1984 | 144,079 | | 1983 | 141,748 | | 1982 | 139,609 | | 1981 | 137,884 | | 1980 | 136,592 | | 1979 | 135,706 | | 1978 | 135,098 | | 1977 | 134,653 | | 1976 | 134,198 | | 1975 | 133,536 | | 1974 | 132,619 | | 1973 | 131,496 | | 1972 | 130,128 | | 1971 | 128,539 | | 1970 | 126,798 | | 1969 | 124,886 | | 1968 | 122,765 | | 1967 | 120,346 | | 1966 | 117,564 | | 1965 | 114,479 | | 1964 | 111,144 | | 1963 | 107,615 | | 1962 | 104,067 | | 1961 | 100,637 | | 1960 | 97,378 |
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