Year	scale 1-100
1970	35.625
1971	35.625
1972	35.625
1973	35.625
1974	35.625
1975	35.625
1976	35.625
1977	35.625
1978	35.625
1979	35.625
1980	35.625
1981	35.625
1982	35.625
1983	35.625
1984	43.75
1985	43.75
1986	43.75
1987	43.75
1988	43.75
1989	43.75
1990	43.75
1991	43.75
1992	43.75
1993	43.75
1994	43.75
1995	43.75
1996	43.75
1997	43.75
1998	43.75
1999	43.75
2000	43.75
2001	43.75
2002	43.75
2003	43.75
2004	43.75
2005	43.75
2006	43.75
2007	43.75
2008	43.75
2009	43.75
2010	43.75
2011	43.75
2012	43.75
2013	56.25
2014	56.25
2015	65
2016	65
2017	65
2018	65
2019	65
2020	65
2021	65
2022	65
2023	65