Year	scale 1-100
1970	42.734375
1971	42.734375
1972	42.734375
1973	43.125
1974	43.125
1975	43.125
1976	43.90625
1977	43.90625
1978	43.90625
1979	43.90625
1980	43.90625
1981	43.90625
1982	43.90625
1983	43.90625
1984	43.90625
1985	43.515625
1986	43.515625
1987	43.125
1988	43.4375
1989	43.4375
1990	43.4375
1991	43.4375
1992	43.4375
1993	43.4375
1994	43.4375
1995	44.0625
1996	44.84375
1997	44.84375
1998	45.625
1999	45.703125
2000	45.703125
2001	45.703125
2002	46.328125
2003	46.328125
2004	46.328125
2005	46.328125
2006	46.953125
2007	50.15625
2008	50.9375
2009	53.046875
2010	54.140625
2011	54.453125
2012	54.765625
2013	55.390625
2014	56.171875
2015	56.953125
2016	58.125
2017	59.21875
2018	61.953125
2019	63.046875
2020	63.75
2021	63.75
2022	63.671875
2023	63.671875