Year	scale 1-100
1970	28.125
1971	28.125
1972	28.125
1973	28.125
1974	28.125
1975	28.125
1976	28.125
1977	28.125
1978	28.125
1979	28.125
1980	28.125
1981	57.5
1982	57.5
1983	57.5
1984	60.625
1985	60.625
1986	60.625
1987	60.625
1988	60.625
1989	60.625
1990	60.625
1991	60.625
1992	60.625
1993	60.625
1994	60.625
1995	60.625
1996	60.625
1997	60.625
1998	60.625
1999	60.625
2000	60.625
2001	60.625
2002	60.625
2003	60.625
2004	60.625
2005	60.625
2006	60.625
2007	60.625
2008	60.625
2009	63.125
2010	63.125
2011	63.125
2012	63.125
2013	63.125
2014	63.125
2015	60
2016	60
2017	60
2018	60
2019	63.125
2020	70.625
2021	70.625
2022	70.625
2023	76.875