Year	scale 1-100
1970	60.625
1971	60.625
1972	60.625
1973	60.625
1974	60.625
1975	60.625
1976	60.625
1977	60.625
1978	60.625
1979	60.625
1980	60.625
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	63.75
1990	63.75
1991	66.25
1992	66.25
1993	66.25
1994	66.25
1995	66.25
1996	66.25
1997	68.75
1998	86.875
1999	86.875
2000	86.875
2001	86.875
2002	86.875
2003	86.875
2004	86.875
2005	86.875
2006	86.875
2007	86.875
2008	86.875
2009	86.875
2010	86.875
2011	86.875
2012	86.875
2013	86.875
2014	86.875
2015	86.875
2016	86.875
2017	86.875
2018	86.875
2019	86.875
2020	86.875
2021	86.875
2022	86.875
2023	86.875
