Year	years
1960	69.24756097560976
1961	70.19560975609757
1962	69.4919512195122
1963	70.30926829268294
1964	71.12121951219513
1965	71.2939024390244
1966	71.22341463414635
1967	70.4139024390244
1968	71.22512195121952
1969	70.43000000000002
1970	71.25634146341464
1971	70.87365853658537
1972	70.89951219512196
1973	71.34219512195124
1974	71.2080487804878
1975	71.04975609756097
1976	71.3948780487805
1977	70.81609756097562
1978	71.18463414634147
1979	71.30829268292685
1980	71.15756097560975
1981	71.57195121951221
1982	71.18609756097563
1983	71.38634146341464
1984	71.49975609756098
1985	71.2280487804878
1986	71.73073170731708
1987	71.52682926829269
1988	71.60439024390244
1989	71.72243902439025
1990	71.64146341463416
1991	71.5609756097561
1992	71.49439024390244
1993	71.3468292682927
1994	71.20878048780489
1995	71.05341463414635
1996	70.89731707317073
1997	70.35121951219514
1998	71.06097560975611
1999	71.41219512195123
2000	71.66341463414635
2001	71.76829268292684
2002	71.86585365853658
2003	72.0658536585366
2004	72.56341463414634
2005	72.5609756097561
2006	72.61219512195122
2007	72.66341463414635
2008	72.96341463414635
2009	73.41219512195123
2010	73.51219512195122
2011	74.16341463414635
2012	74.31463414634149
2013	74.8609756097561
2014	74.46585365853659
2015	74.61463414634147
2016	74.81219512195123
2017	74.81463414634148
2018	74.96341463414636
2019	75.11219512195122
2020	73.65853658536587
2021	71.46341463414635
2022	74.3609756097561