Year	scale 1-100
1970	46.875
1971	46.875
1972	46.875
1973	46.875
1974	46.875
1975	46.875
1976	46.875
1977	46.875
1978	46.875
1979	46.875
1980	46.875
1981	46.875
1982	46.875
1983	46.875
1984	46.875
1985	46.875
1986	46.875
1987	46.875
1988	46.875
1989	46.875
1990	46.875
1991	46.875
1992	46.875
1993	46.875
1994	46.875
1995	46.875
1996	46.875
1997	46.875
1998	46.875
1999	46.875
2000	46.875
2001	46.875
2002	46.875
2003	46.875
2004	46.875
2005	46.875
2006	62.5
2007	67.5
2008	67.5
2009	67.5
2010	70
2011	70
2012	70
2013	70
2014	70
2015	70
2016	70
2017	70
2018	70
2019	73.125
2020	73.125
2021	73.125
2022	81.25
2023	83.75