Year	scale 1-100
1970	43.75
1971	43.75
1972	43.75
1973	43.75
1974	43.75
1975	43.75
1976	43.75
1977	43.75
1978	43.75
1979	43.75
1980	43.75
1981	43.75
1982	43.75
1983	43.75
1984	43.75
1985	57.5
1986	57.5
1987	57.5
1988	57.5
1989	60
1990	60
1991	60
1992	60
1993	60
1994	60
1995	72.5
1996	72.5
1997	75.625
1998	75.625
1999	78.125
2000	78.125
2001	78.125
2002	78.125
2003	78.125
2004	78.125
2005	78.125
2006	83.125
2007	85.625
2008	85.625
2009	85.625
2010	85.625
2011	85.625
2012	85.625
2013	85.625
2014	85.625
2015	85.625
2016	85.625
2017	85.625
2018	85.625
2019	85.625
2020	85.625
2021	88.125
2022	88.125
2023	88.125