Year	scale 1-100
1970	55.625
1971	58.125
1972	58.125
1973	58.125
1974	58.125
1975	58.125
1976	58.125
1977	58.125
1978	58.125
1979	58.125
1980	58.125
1981	58.125
1982	58.125
1983	58.125
1984	58.125
1985	58.125
1986	58.125
1987	58.125
1988	55
1989	55
1990	55
1991	55
1992	58.125
1993	58.125
1994	61.25
1995	61.25
1996	61.25
1997	70
1998	70
1999	70
2000	70
2001	70
2002	70
2003	70
2004	70
2005	73.125
2006	73.125
2007	73.125
2008	73.125
2009	73.125
2010	73.125
2011	73.125
2012	73.125
2013	75.625
2014	75.625
2015	75.625
2016	75.625
2017	78.75
2018	78.75
2019	78.75
2020	78.75
2021	78.75
2022	78.75
2023	78.75