Year	scale 1-100
1970	29.59375
1971	29.59375
1972	29.59375
1973	29.59375
1974	30.53125
1975	30.65625
1976	30.65625
1977	31.09375
1978	31.09375
1979	31.375
1980	31.375
1981	31.65625
1982	31.65625
1983	31.65625
1984	31.90625
1985	31.90625
1986	31.78125
1987	31.78125
1988	31.9375
1989	31.9375
1990	32.53125
1991	32.375
1992	32.53125
1993	32.53125
1994	33.46875
1995	33.625
1996	33.9375
1997	33.9375
1998	33.9375
1999	34.40625
2000	34.84375
2001	35.125
2002	35.09375
2003	36
2004	37.15625
2005	38.15625
2006	38.875
2007	39.28125
2008	39.6875
2009	39.84375
2010	41
2011	41.15625
2012	41.40625
2013	41.5625
2014	41.8125
2015	42.5625
2016	43.40625
2017	44
2018	45.28125
2019	48.96875
2020	51.5
2021	53.1875
2022	53.1875
2023	54.65625