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	26.25
1989	26.25
1990	26.25
1991	26.25
1992	29.375
1993	29.375
1994	29.375
1995	29.375
1996	29.375
1997	29.375
1998	29.375
1999	29.375
2000	29.375
2001	29.375
2002	29.375
2003	32.5
2004	32.5
2005	32.5
2006	32.5
2007	32.5
2008	32.5
2009	32.5
2010	32.5
2011	32.5
2012	32.5
2013	32.5
2014	32.5
2015	32.5
2016	32.5
2017	32.5
2018	32.5
2019	32.5
2020	32.5
2021	35.625
2022	35.625
2023	46.25