| Year | Value | | 2021 | 527,970 | | 2020 | 527,970 | | 2019 | 527,970 | | 2018 | 527,970 | | 2017 | 527,970 | | 2016 | 527,970 | | 2015 | 527,970 | | 2014 | 527,970 | | 2013 | 527,970 | | 2012 | 527,970 | | 2011 | 527,970 | | 2010 | 527,970 | | 2009 | 527,970 | | 2008 | 527,970 | | 2007 | 527,970 | | 2006 | 527,970 | | 2005 | 527,970 | | 2004 | 527,970 | | 2003 | 527,970 | | 2002 | 527,970 | | 2001 | 527,970 | | 2000 | 527,970 | | 1999 | 527,970 | | 1998 | 527,970 | | 1997 | 527,970 | | 1996 | 527,970 | | 1995 | 527,970 | | 1994 | 527,970 | | 1993 | 527,970 | | 1992 | 527,970 | | 1991 | 527,970 | | 1990 | 527,970 | | 1989 | 527,970 | | 1988 | 527,970 | | 1987 | 527,970 | | 1986 | 527,970 | | 1985 | 527,970 | | 1984 | 527,970 | | 1983 | 527,970 | | 1982 | 527,970 | | 1981 | 527,970 | | 1980 | 527,970 | | 1979 | 527,970 | | 1978 | 527,970 | | 1977 | 527,970 | | 1976 | 527,970 | | 1975 | 527,970 | | 1974 | 527,970 | | 1973 | 527,970 | | 1972 | 527,970 | | 1971 | 527,970 | | 1970 | 527,970 | | 1969 | 527,970 | | 1968 | 527,970 | | 1967 | 527,970 | | 1966 | 527,970 | | 1965 | 527,970 | | 1964 | 527,970 | | 1963 | 527,970 | | 1962 | 527,970 | | 1961 | 527,970 |
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