Year	scale 1-100
1970	51.25
1971	51.25
1972	51.25
1973	51.25
1974	51.25
1975	56.875
1976	59.375
1977	59.375
1978	59.375
1979	59.375
1980	59.375
1981	59.375
1982	59.375
1983	59.375
1984	59.375
1985	59.375
1986	59.375
1987	59.375
1988	59.375
1989	59.375
1990	59.375
1991	59.375
1992	59.375
1993	59.375
1994	59.375
1995	59.375
1996	59.375
1997	61.875
1998	61.875
1999	61.875
2000	61.875
2001	64.375
2002	64.375
2003	66.875
2004	66.875
2005	66.875
2006	73.125
2007	73.125
2008	73.125
2009	73.125
2010	73.125
2011	73.125
2012	78.75
2013	78.75
2014	78.75
2015	78.75
2016	78.75
2017	81.875
2018	81.875
2019	81.875
2020	81.875
2021	84.375
2022	84.375
2023	84.375