Year	scale 1-100
1970	41.875
1971	41.875
1972	41.875
1973	41.875
1974	41.875
1975	41.875
1976	41.875
1977	41.875
1978	41.875
1979	41.875
1980	41.875
1981	41.875
1982	41.875
1983	41.875
1984	41.875
1985	44.375
1986	44.375
1987	44.375
1988	44.375
1989	44.375
1990	44.375
1991	44.375
1992	44.375
1993	44.375
1994	44.375
1995	46.875
1996	46.875
1997	46.875
1998	46.875
1999	46.875
2000	46.875
2001	46.875
2002	46.875
2003	46.875
2004	46.875
2005	46.875
2006	46.875
2007	46.875
2008	46.875
2009	46.875
2010	46.875
2011	46.875
2012	50
2013	50
2014	50
2015	50
2016	50
2017	50
2018	50
2019	50
2020	50
2021	50
2022	50
2023	60.625