Year	scale 1-100
1970	62.5
1971	62.5
1972	62.5
1973	65
1974	65
1975	64.375
1976	64.375
1977	64.375
1978	64.375
1979	64.375
1980	64.375
1981	64.375
1982	64.375
1983	61.25
1984	61.25
1985	61.25
1986	61.25
1987	61.25
1988	61.25
1989	61.25
1990	61.25
1991	61.25
1992	61.25
1993	61.25
1994	61.25
1995	61.25
1996	61.25
1997	61.25
1998	63.75
1999	66.875
2000	66.875
2001	66.875
2002	66.875
2003	66.875
2004	66.875
2005	66.875
2006	66.875
2007	66.875
2008	66.875
2009	73.125
2010	76.25
2011	85
2012	85
2013	84.375
2014	84.375
2015	84.375
2016	84.375
2017	93.75
2018	93.75
2019	93.75
2020	93.75
2021	93.75
2022	93.75
2023	93.75