Year	scale 1-100
1970	39.375
1971	39.375
1972	39.375
1973	39.375
1974	41.875
1975	41.875
1976	41.875
1977	41.875
1978	41.875
1979	41.875
1980	41.875
1981	41.875
1982	41.875
1983	41.875
1984	41.875
1985	41.875
1986	41.875
1987	41.875
1988	41.875
1989	41.875
1990	41.875
1991	41.875
1992	41.875
1993	41.875
1994	41.875
1995	41.875
1996	41.875
1997	41.875
1998	41.875
1999	41.875
2000	41.875
2001	41.875
2002	41.875
2003	41.875
2004	41.875
2005	41.875
2006	41.875
2007	41.875
2008	41.875
2009	41.875
2010	41.875
2011	41.875
2012	41.875
2013	41.875
2014	41.875
2015	48.125
2016	48.125
2017	48.125
2018	48.125
2019	48.125
2020	48.125
2021	48.125
2022	48.125
2023	48.125