| Year | Value | | 2022 | 221,686 | | 2021 | 216,152 | | 2020 | 210,643 | | 2019 | 204,667 | | 2018 | 198,408 | | 2017 | 192,484 | | 2016 | 186,263 | | 2015 | 180,610 | | 2014 | 175,932 | | 2013 | 171,213 | | 2012 | 167,055 | | 2011 | 165,410 | | 2010 | 164,176 | | 2009 | 161,520 | | 2008 | 159,064 | | 2007 | 156,020 | | 2006 | 152,925 | | 2005 | 150,055 | | 2004 | 145,471 | | 2003 | 139,043 | | 2002 | 132,129 | | 2001 | 124,821 | | 2000 | 116,841 | | 1999 | 109,915 | | 1998 | 104,637 | | 1997 | 99,961 | | 1996 | 96,501 | | 1995 | 93,624 | | 1994 | 91,446 | | 1993 | 88,646 | | 1992 | 87,775 | | 1991 | 93,019 | | 1990 | 97,466 | | 1989 | 98,394 | | 1988 | 99,523 | | 1987 | 98,299 | | 1986 | 94,099 | | 1985 | 90,259 | | 1984 | 87,203 | | 1983 | 85,094 | | 1982 | 83,831 | | 1981 | 85,050 | | 1980 | 85,687 | | 1979 | 79,643 | | 1978 | 71,157 | | 1977 | 66,968 | | 1976 | 65,862 | | 1975 | 64,869 | | 1974 | 63,869 | | 1973 | 62,802 | | 1972 | 61,693 | | 1971 | 60,613 | | 1970 | 59,538 | | 1969 | 58,456 | | 1968 | 57,391 | | 1967 | 56,331 | | 1966 | 55,276 | | 1965 | 54,217 | | 1964 | 53,157 | | 1963 | 52,108 | | 1962 | 51,067 | | 1961 | 50,040 | | 1960 | 49,039 |
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