Year	scale 1-100
1970	23.125
1971	23.125
1972	23.125
1973	23.125
1974	23.125
1975	23.125
1976	23.125
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	26.25
1989	26.25
1990	26.25
1991	26.25
1992	26.25
1993	26.25
1994	26.25
1995	26.25
1996	26.25
1997	26.25
1998	26.25
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	26.25
2008	26.25
2009	26.25
2010	29.375
2011	29.375
2012	29.375
2013	29.375
2014	29.375
2015	29.375
2016	29.375
2017	29.375
2018	29.375
2019	26.25
2020	28.75
2021	38.125
2022	38.125
2023	38.125