Year	scale 1-100
1970	62.5
1971	62.5
1972	62.5
1973	65.625
1974	65.625
1975	65.625
1976	65.625
1977	65.625
1978	65.625
1979	65.625
1980	65.625
1981	65.625
1982	65.625
1983	65.625
1984	65.625
1985	65.625
1986	68.125
1987	68.125
1988	68.125
1989	68.125
1990	68.125
1991	71.25
1992	71.25
1993	71.25
1994	71.25
1995	71.25
1996	73.75
1997	73.75
1998	73.75
1999	73.75
2000	73.75
2001	76.25
2002	76.25
2003	76.25
2004	76.25
2005	76.25
2006	76.25
2007	76.25
2008	76.25
2009	76.25
2010	76.25
2011	78.75
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