Year	scale 1-100
1970	43.75
1971	43.75
1972	43.75
1973	43.75
1974	43.75
1975	43.75
1976	43.75
1977	50
1978	50
1979	50
1980	50
1981	60.625
1982	60.625
1983	60.625
1984	60.625
1985	60.625
1986	60.625
1987	60.625
1988	60.625
1989	60.625
1990	60.625
1991	60.625
1992	60.625
1993	60.625
1994	60.625
1995	60.625
1996	60.625
1997	63.125
1998	63.125
1999	69.375
2000	69.375
2001	69.375
2002	69.375
2003	69.375
2004	69.375
2005	69.375
2006	69.375
2007	69.375
2008	69.375
2009	83.75
2010	83.75
2011	83.75
2012	83.75
2013	83.75
2014	86.875
2015	86.875
2016	89.375
2017	89.375
2018	89.375
2019	89.375
2020	89.375
2021	89.375
2022	89.375
2023	89.375