| Year | Value | | 2022 | 171,983 | | 2021 | 169,053 | | 2020 | 166,039 | | 2019 | 162,802 | | 2018 | 159,374 | | 2017 | 155,818 | | 2016 | 152,018 | | 2015 | 147,948 | | 2014 | 143,727 | | 2013 | 139,425 | | 2012 | 135,115 | | 2011 | 130,834 | | 2010 | 126,684 | | 2009 | 122,840 | | 2008 | 119,335 | | 2007 | 116,190 | | 2006 | 113,565 | | 2005 | 111,575 | | 2004 | 107,828 | | 2003 | 103,120 | | 2002 | 99,974 | | 2001 | 98,755 | | 2000 | 98,494 | | 1999 | 99,707 | | 1998 | 101,558 | | 1997 | 102,365 | | 1996 | 102,239 | | 1995 | 100,469 | | 1994 | 98,598 | | 1993 | 96,755 | | 1992 | 95,076 | | 1991 | 93,364 | | 1990 | 91,071 | | 1989 | 89,444 | | 1988 | 88,498 | | 1987 | 87,464 | | 1986 | 86,513 | | 1985 | 85,739 | | 1984 | 85,118 | | 1983 | 84,621 | | 1982 | 84,216 | | 1981 | 83,854 | | 1980 | 83,514 | | 1979 | 83,175 | | 1978 | 82,802 | | 1977 | 82,359 | | 1976 | 81,841 | | 1975 | 81,251 | | 1974 | 80,578 | | 1973 | 79,807 | | 1972 | 78,946 | | 1971 | 77,995 | | 1970 | 76,940 | | 1969 | 75,795 | | 1968 | 74,590 | | 1967 | 73,344 | | 1966 | 72,032 | | 1965 | 70,632 | | 1964 | 69,150 | | 1963 | 67,578 | | 1962 | 65,967 | | 1961 | 64,449 | | 1960 | 63,101 |
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