Year	scale 1-100
1970	51.875
1971	51.875
1972	51.875
1973	51.875
1974	51.875
1975	51.875
1976	51.875
1977	51.875
1978	51.875
1979	51.875
1980	51.875
1981	51.875
1982	55
1983	55
1984	55
1985	55
1986	55
1987	57.5
1988	57.5
1989	60.625
1990	60.625
1991	60.625
1992	60.625
1993	60.625
1994	60.625
1995	60.625
1996	63.75
1997	66.25
1998	66.25
1999	66.25
2000	66.25
2001	66.25
2002	66.25
2003	68.75
2004	68.75
2005	68.75
2006	68.75
2007	68.75
2008	68.75
2009	71.25
2010	71.25
2011	71.25
2012	71.25
2013	71.25
2014	82.5
2015	82.5
2016	82.5
2017	82.5
2018	82.5
2019	82.5
2020	82.5
2021	82.5
2022	82.5
2023	82.5