Year	scale 1-100
1970	54.375
1971	54.375
1972	54.375
1973	54.375
1974	54.375
1975	54.375
1976	56.875
1977	60
1978	60
1979	60
1980	60
1981	62.5
1982	65.625
1983	68.75
1984	75
1985	75
1986	75
1987	75
1988	75
1989	75
1990	75
1991	75
1992	75
1993	75
1994	75
1995	75
1996	75
1997	81.25
1998	81.25
1999	81.25
2000	81.25
2001	81.25
2002	81.25
2003	81.25
2004	81.25
2005	81.25
2006	81.25
2007	81.25
2008	83.75
2009	83.75
2010	83.75
2011	91.25
2012	91.25
2013	93.75
2014	93.75
2015	96.875
2016	96.875
2017	96.875
2018	96.875
2019	96.875
2020	96.875
2021	96.875
2022	96.875
2023	96.875