Year	scale 1-100
1970	65.3125
1971	65.3125
1972	67.8125
1973	67.8125
1974	67.8125
1975	70.625
1976	70.625
1977	72.1875
1978	75.3125
1979	76.5625
1980	76.5625
1981	80.9375
1982	80.9375
1983	80.9375
1984	80.9375
1985	83.75
1986	83.75
1987	85.3125
1988	85.3125
1989	85.3125
1990	88.125
1991	89.375
1992	89.375
1993	89.375
1994	90.625
1995	90.625
1996	90.625
1997	90.625
1998	90.625
1999	90.625
2000	90.625
2001	90.625
2002	90.625
2003	90.625
2004	90.625
2005	90.625
2006	90.625
2007	90.625
2008	90.625
2009	90.625
2010	90.625
2011	90.625
2012	90.625
2013	90.625
2014	90.625
2015	90.625
2016	90.625
2017	90.625
2018	94.375
2019	95.625
2020	95.625
2021	95.625
2022	95.625