Year scale 1-100 1970 48.125 1971 48.125 1972 48.125 1973 48.125 1974 48.125 1975 48.125 1976 48.125 1977 48.125 1978 48.125 1979 48.125 1980 48.125 1981 48.125 1982 48.125 1983 48.125 1984 48.125 1985 48.125 1986 48.125 1987 48.125 1988 48.125 1989 48.125 1990 61.875 1991 61.875 1992 61.875 1993 70.625 1994 70.625 1995 70.625 1996 70.625 1997 70.625 1998 70.625 1999 70.625 2000 70.625 2001 70.625 2002 70.625 2003 70.625 2004 70.625 2005 76.875 2006 76.875 2007 76.875 2008 76.875 2009 76.875 2010 76.875 2011 76.875 2012 76.875 2013 76.875 2014 76.875 2015 76.875 2016 76.875 2017 76.875 2018 82.5 2019 82.5 2020 82.5 2021 82.5 2022 82.5 2023 82.5