Year	scale 1-100
1970	63.75
1971	63.75
1972	63.75
1973	63.75
1974	63.75
1975	63.75
1976	63.75
1977	63.75
1978	73.75
1979	80
1980	80
1981	80
1982	80
1983	80
1984	80
1985	80
1986	80
1987	80
1988	80
1989	80
1990	80
1991	80
1992	82.5
1993	85.625
1994	85.625
1995	88.125
1996	88.125
1997	88.125
1998	88.125
1999	88.125
2000	88.125
2001	88.125
2002	88.125
2003	94.375
2004	94.375
2005	94.375
2006	94.375
2007	94.375
2008	94.375
2009	96.875
2010	96.875
2011	96.875
2012	96.875
2013	96.875
2014	96.875
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