Year	scale 1-100
1970	55
1971	55
1972	55
1973	55
1974	55
1975	58.125
1976	58.125
1977	58.125
1978	58.125
1979	58.125
1980	58.125
1981	58.125
1982	58.125
1983	58.125
1984	61.25
1985	61.25
1986	61.25
1987	61.25
1988	61.25
1989	61.25
1990	61.25
1991	67.5
1992	67.5
1993	67.5
1994	67.5
1995	67.5
1996	67.5
1997	67.5
1998	67.5
1999	67.5
2000	72.5
2001	72.5
2002	72.5
2003	72.5
2004	72.5
2005	72.5
2006	72.5
2007	75
2008	75
2009	77.5
2010	77.5
2011	77.5
2012	77.5
2013	85.625
2014	88.75
2015	88.75
2016	88.75
2017	88.75
2018	88.75
2019	88.75
2020	88.75
2021	88.75
2022	88.75
2023	88.75