Year	scale 1-100
1970	31.875
1971	31.875
1972	31.875
1973	31.875
1974	31.875
1975	31.875
1976	31.875
1977	31.875
1978	38.125
1979	38.125
1980	38.125
1981	38.125
1982	38.125
1983	38.125
1984	38.125
1985	38.125
1986	38.125
1987	38.125
1988	38.125
1989	38.125
1990	38.125
1991	38.125
1992	38.125
1993	38.125
1994	38.125
1995	38.125
1996	38.125
1997	38.125
1998	40.625
1999	40.625
2000	40.625
2001	40.625
2002	50
2003	50
2004	53.125
2005	53.125
2006	53.125
2007	53.125
2008	53.125
2009	53.125
2010	53.125
2011	55.625
2012	78.125
2013	80.625
2014	80.625
2015	80.625
2016	80.625
2017	80.625
2018	86.25
2019	86.25
2020	86.25
2021	86.25
2022	86.25
2023	86.25