Year	scale 1-100
1970	20
1971	22.5
1972	22.5
1973	22.5
1974	22.5
1975	22.5
1976	22.5
1977	22.5
1978	22.5
1979	22.5
1980	22.5
1981	22.5
1982	22.5
1983	22.5
1984	22.5
1985	22.5
1986	22.5
1987	22.5
1988	22.5
1989	22.5
1990	22.5
1991	22.5
1992	22.5
1993	28.75
1994	28.75
1995	28.75
1996	38.125
1997	38.125
1998	38.125
1999	38.125
2000	38.125
2001	38.125
2002	38.125
2003	38.125
2004	38.125
2005	61.25
2006	61.25
2007	61.25
2008	63.75
2009	63.75
2010	63.75
2011	63.75
2012	63.75
2013	63.75
2014	63.75
2015	63.75
2016	63.75
2017	63.75
2018	63.75
2019	63.75
2020	63.75
2021	63.75
2022	63.75
2023	63.75