Year	scale 1-100
1970	37.5
1971	37.5
1972	37.5
1973	37.5
1974	37.5
1975	40
1976	40
1977	40
1978	40
1979	40
1980	40
1981	40
1982	40
1983	40
1984	40
1985	40
1986	40
1987	40
1988	40
1989	40
1990	40
1991	40
1992	40
1993	40
1994	40
1995	43.125
1996	43.125
1997	43.125
1998	43.125
1999	43.125
2000	43.125
2001	49.375
2002	49.375
2003	49.375
2004	49.375
2005	55.625
2006	55.625
2007	55.625
2008	60.625
2009	60.625
2010	60.625
2011	60.625
2012	60.625
2013	60.625
2014	66.875
2015	66.875
2016	66.875
2017	66.875
2018	66.875
2019	66.875
2020	69.375
2021	69.375
2022	69.375
2023	69.375