Year	scale 1-100
1970	55.625
1971	55.625
1972	58.125
1973	61.25
1974	61.25
1975	61.25
1976	61.25
1977	61.25
1978	61.25
1979	61.25
1980	61.25
1981	61.25
1982	61.25
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	67.5
1996	67.5
1997	67.5
1998	67.5
1999	73.75
2000	73.75
2001	79.375
2002	79.375
2003	79.375
2004	88.75
2005	88.75
2006	88.75
2007	88.75
2008	91.25
2009	91.25
2010	91.25
2011	91.25
2012	93.75
2013	93.75
2014	93.75
2015	93.75
2016	93.75
2017	93.75
2018	93.75
2019	93.75
2020	93.75
2021	93.75
2022	93.75
2023	93.75