Year	years
1960	70.264
1961	70.848
1962	71.17
1963	72.044
1964	72.747
1965	73.337
1966	73.618
1967	73.792
1968	74.206
1969	74.451
1970	75.105
1971	75.33
1972	75.4
1973	75.86
1974	76.26
1975	76.84
1976	76.19
1977	76.74
1978	76.66
1979	76.89
1980	77.87
1981	78.54
1982	78.44
1983	78.38
1984	78.97
1985	79.19
1986	79.44
1987	79.72
1988	79.88
1989	80.02
1990	80.28
1991	80.69
1992	80.68
1993	80.91
1994	81.54
1995	81.46
1996	82.67
1997	83.17
1998	82.97
1999	83.2
2000	83.89
2001	84.6
2002	84.51
2003	84.35
2004	84.77
2005	84.59
2006	85.54
2007	85.44
2008	85.47
2009	85.92
2010	86
2011	86.69
2012	86.38
2013	86.72
2014	86.85
2015	87.29
2016	87.3
2017	87.61
2018	87.61
2019	88.06
2020	87.75
2021	87.94
2022	86.77