Year	scale 1-100
1970	36.875
1971	36.875
1972	36.875
1973	36.875
1974	36.875
1975	36.875
1976	36.875
1977	36.875
1978	36.875
1979	36.875
1980	36.875
1981	36.875
1982	36.875
1983	52.5
1984	52.5
1985	52.5
1986	52.5
1987	52.5
1988	55
1989	55
1990	55
1991	55
1992	57.5
1993	57.5
1994	66.875
1995	66.875
1996	66.875
1997	66.875
1998	66.875
1999	70
2000	70
2001	70
2002	70
2003	75.625
2004	75.625
2005	75.625
2006	84.375
2007	86.875
2008	86.875
2009	86.875
2010	86.875
2011	86.875
2012	86.875
2013	86.875
2014	86.875
2015	86.875
2016	86.875
2017	86.875
2018	86.875
2019	86.875
2020	86.875
2021	86.875
2022	86.875
2023	86.875