Year	scale 1-100
1970	26.25
1971	26.25
1972	26.25
1973	26.25
1974	26.25
1975	26.25
1976	26.25
1977	26.25
1978	26.25
1979	26.25
1980	26.25
1981	26.25
1982	26.25
1983	26.25
1984	26.25
1985	26.25
1986	26.25
1987	26.25
1988	25.625
1989	25.625
1990	25.625
1991	25.625
1992	25.625
1993	25.625
1994	25.625
1995	25.625
1996	25.625
1997	25.625
1998	25.625
1999	26.25
2000	26.25
2001	26.25
2002	26.25
2003	26.25
2004	26.25
2005	26.25
2006	26.25
2007	28.75
2008	28.75
2009	28.75
2010	28.75
2011	28.75
2012	28.75
2013	28.75
2014	28.75
2015	28.75
2016	38.125
2017	38.125
2018	38.125
2019	38.125
2020	38.125
2021	38.125
2022	31.875
2023	31.875