Year	scale 1-100
1970	60
1971	60
1972	60
1973	60
1974	60
1975	60
1976	60
1977	60
1978	60
1979	60
1980	60
1981	62.5
1982	62.5
1983	62.5
1984	62.5
1985	62.5
1986	62.5
1987	62.5
1988	62.5
1989	62.5
1990	65.625
1991	65.625
1992	65.625
1993	65.625
1994	65.625
1995	65.625
1996	68.125
1997	68.125
1998	68.125
1999	68.125
2000	68.125
2001	68.125
2002	68.125
2003	71.25
2004	71.25
2005	71.25
2006	71.25
2007	71.25
2008	71.25
2009	76.875
2010	83.125
2011	83.125
2012	83.125
2013	83.125
2014	85.625
2015	85.625
2016	85.625
2017	85.625
2018	88.75
2019	88.75
2020	88.75
2021	88.75
2022	88.75
2023	88.75