| Year | Value | | 2022 | 194,551 | | 2021 | 192,679 | | 2020 | 191,398 | | 2019 | 189,372 | | 2018 | 186,018 | | 2017 | 182,422 | | 2016 | 178,718 | | 2015 | 174,792 | | 2014 | 171,234 | | 2013 | 168,624 | | 2012 | 166,504 | | 2011 | 164,531 | | 2010 | 162,997 | | 2009 | 161,140 | | 2008 | 158,933 | | 2007 | 156,905 | | 2006 | 154,670 | | 2005 | 152,711 | | 2004 | 151,905 | | 2003 | 152,106 | | 2002 | 153,102 | | 2001 | 155,684 | | 2000 | 157,508 | | 1999 | 156,642 | | 1998 | 152,999 | | 1997 | 145,927 | | 1996 | 135,414 | | 1995 | 124,914 | | 1994 | 116,569 | | 1993 | 109,541 | | 1992 | 104,525 | | 1991 | 101,489 | | 1990 | 98,881 | | 1989 | 96,033 | | 1988 | 94,132 | | 1987 | 93,588 | | 1986 | 94,350 | | 1985 | 96,311 | | 1984 | 98,845 | | 1983 | 101,178 | | 1982 | 103,166 | | 1981 | 105,283 | | 1980 | 107,576 | | 1979 | 110,192 | | 1978 | 113,830 | | 1977 | 117,625 | | 1976 | 120,831 | | 1975 | 124,594 | | 1974 | 126,619 | | 1973 | 125,920 | | 1972 | 125,463 | | 1971 | 124,410 | | 1970 | 121,512 | | 1969 | 119,909 | | 1968 | 120,012 | | 1967 | 119,358 | | 1966 | 118,961 | | 1965 | 118,818 | | 1964 | 118,251 | | 1963 | 117,107 | | 1962 | 115,065 | | 1961 | 112,614 | | 1960 | 110,275 |
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