| Year | Value | | 2022 | 127,785 | | 2021 | 126,386 | | 2020 | 126,054 | | 2019 | 125,530 | | 2018 | 125,561 | | 2017 | 125,547 | | 2016 | 125,494 | | 2015 | 125,297 | | 2014 | 124,855 | | 2013 | 123,777 | | 2012 | 122,488 | | 2011 | 122,639 | | 2010 | 125,434 | | 2009 | 132,213 | | 2008 | 141,970 | | 2007 | 151,159 | | 2006 | 160,113 | | 2005 | 167,423 | | 2004 | 171,386 | | 2003 | 171,441 | | 2002 | 168,538 | | 2001 | 163,986 | | 2000 | 159,847 | | 1999 | 156,783 | | 1998 | 154,907 | | 1997 | 154,804 | | 1996 | 156,425 | | 1995 | 158,977 | | 1994 | 162,275 | | 1993 | 161,980 | | 1992 | 156,798 | | 1991 | 149,459 | | 1990 | 139,294 | | 1989 | 128,084 | | 1988 | 116,750 | | 1987 | 109,487 | | 1986 | 111,650 | | 1985 | 122,595 | | 1984 | 139,342 | | 1983 | 157,268 | | 1982 | 171,281 | | 1981 | 178,511 | | 1980 | 178,686 | | 1979 | 173,874 | | 1978 | 166,900 | | 1977 | 159,999 | | 1976 | 155,224 | | 1975 | 153,907 | | 1974 | 155,824 | | 1973 | 159,712 | | 1972 | 163,902 | | 1971 | 166,116 | | 1970 | 164,607 | | 1969 | 160,553 | | 1968 | 154,748 | | 1967 | 146,381 | | 1966 | 136,114 | | 1965 | 125,296 | | 1964 | 115,370 | | 1963 | 106,812 | | 1962 | 99,882 | | 1961 | 95,425 | | 1960 | 94,156 |
|