Year	scale 1-100
1970	30
1971	30
1972	30
1973	30
1974	30
1975	32.5
1976	32.5
1977	32.5
1978	32.5
1979	32.5
1980	32.5
1981	32.5
1982	32.5
1983	32.5
1984	35
1985	35
1986	35
1987	35
1988	35
1989	35
1990	40.625
1991	40.625
1992	40.625
1993	40.625
1994	40.625
1995	40.625
1996	40.625
1997	40.625
1998	40.625
1999	40.625
2000	40.625
2001	40.625
2002	40.625
2003	40.625
2004	40.625
2005	55
2006	55
2007	55
2008	55
2009	55
2010	55
2011	55
2012	55
2013	55
2014	55
2015	55
2016	57.5
2017	57.5
2018	57.5
2019	57.5
2020	57.5
2021	57.5
2022	57.5
2023	57.5