Year	scale 1-100
1970	64.375
1971	64.375
1972	64.375
1973	64.375
1974	64.375
1975	64.375
1976	64.375
1977	64.375
1978	64.375
1979	64.375
1980	64.375
1981	67.5
1982	67.5
1983	67.5
1984	67.5
1985	67.5
1986	67.5
1987	67.5
1988	67.5
1989	67.5
1990	67.5
1991	70
1992	70
1993	70
1994	73.125
1995	73.125
1996	73.125
1997	73.125
1998	73.125
1999	73.125
2000	73.125
2001	73.125
2002	73.125
2003	73.125
2004	73.125
2005	73.125
2006	75.625
2007	81.875
2008	85
2009	88.125
2010	88.125
2011	88.125
2012	91.25
2013	91.25
2014	91.25
2015	91.25
2016	91.25
2017	91.25
2018	93.75
2019	93.75
2020	93.75
2021	93.75
2022	93.75
2023	93.75