Year	scale 1-100
1970	51.25
1971	60
1972	60
1973	60
1974	60
1975	60
1976	63.125
1977	63.125
1978	63.125
1979	63.125
1980	63.125
1981	63.125
1982	63.125
1983	63.125
1984	63.125
1985	63.125
1986	63.125
1987	63.125
1988	63.125
1989	63.125
1990	63.125
1991	63.125
1992	63.125
1993	63.125
1994	63.125
1995	71.25
1996	71.25
1997	71.25
1998	71.25
1999	71.25
2000	73.75
2001	73.75
2002	73.75
2003	73.75
2004	73.75
2005	73.75
2006	73.75
2007	73.75
2008	73.75
2009	73.75
2010	73.75
2011	73.75
2012	73.75
2013	73.75
2014	73.75
2015	73.75
2016	76.25
2017	76.25
2018	76.25
2019	76.25
2020	76.25
2021	76.25
2022	76.25
2023	76.25