Year	scale 1-100
1970	58.125
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	58.125
1989	58.125
1990	61.25
1991	61.25
1992	61.25
1993	61.25
1994	61.25
1995	67.5
1996	67.5
1997	67.5
1998	67.5
1999	67.5
2000	67.5
2001	67.5
2002	67.5
2003	67.5
2004	76.25
2005	76.25
2006	76.25
2007	76.25
2008	76.25
2009	84.375
2010	93.75
2011	93.75
2012	93.75
2013	93.75
2014	93.75
2015	93.75
2016	93.75
2017	93.75
2018	93.75
2019	93.75
2020	93.75
2021	93.75
2022	93.75
2023	93.75