Year	scale 1-100
1970	43.125
1971	43.125
1972	49.375
1973	49.375
1974	49.375
1975	49.375
1976	49.375
1977	49.375
1978	49.375
1979	49.375
1980	49.375
1981	49.375
1982	49.375
1983	49.375
1984	49.375
1985	49.375
1986	49.375
1987	49.375
1988	49.375
1989	49.375
1990	49.375
1991	49.375
1992	49.375
1993	49.375
1994	49.375
1995	49.375
1996	49.375
1997	49.375
1998	49.375
1999	49.375
2000	49.375
2001	49.375
2002	49.375
2003	49.375
2004	49.375
2005	49.375
2006	49.375
2007	49.375
2008	49.375
2009	49.375
2010	49.375
2011	51.875
2012	51.875
2013	75
2014	75
2015	75
2016	75
2017	75
2018	75
2019	75
2020	75
2021	75
2022	75
2023	75