Year	scale 1-100
1970	41.25
1971	41.25
1972	41.25
1973	41.25
1974	41.25
1975	41.25
1976	41.25
1977	41.25
1978	41.25
1979	41.25
1980	41.25
1981	41.25
1982	41.25
1983	41.25
1984	41.25
1985	41.25
1986	41.25
1987	41.25
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	46.875
2007	46.875
2008	46.875
2009	46.875
2010	46.875
2011	46.875
2012	46.875
2013	46.875
2014	59.375
2015	59.375
2016	59.375
2017	62.5
2018	62.5
2019	73.75
2020	73.75
2021	73.75
2022	73.75
2023	73.75