Year	scale 1-100
1970	34.375
1971	34.375
1972	34.375
1973	36.875
1974	39.375
1975	39.375
1976	39.375
1977	39.375
1978	39.375
1979	39.375
1980	39.375
1981	39.375
1982	39.375
1983	39.375
1984	39.375
1985	39.375
1986	39.375
1987	39.375
1988	55
1989	58.125
1990	58.125
1991	58.125
1992	61.25
1993	61.25
1994	61.25
1995	67.5
1996	67.5
1997	70
1998	70
1999	70
2000	70
2001	70
2002	70
2003	70
2004	72.5
2005	72.5
2006	72.5
2007	72.5
2008	72.5
2009	72.5
2010	72.5
2011	72.5
2012	78.75
2013	78.75
2014	78.75
2015	78.75
2016	78.75
2017	78.75
2018	78.75
2019	78.75
2020	78.75
2021	78.75
2022	78.75
2023	78.75