Year	years
1960	70.191
1961	66.236
1962	67.574
1963	64.433
1964	70.335
1965	70.493
1966	66.781
1967	72.902
1968	72.509
1969	72.29
1970	74.988
1971	72.719
1972	74.192
1973	75.647
1974	76.219
1975	76.485
1976	75.683
1977	76.137
1978	76.931
1979	76.825
1980	77.654
1981	77.711
1982	78.227
1983	78.295
1984	77.693
1985	76.478
1986	77.665
1987	78.206
1988	79.219
1989	77.867
1990	78.529
1991	78.973
1992	76.435
1993	78.695
1994	76.325
1995	79.624
1996	81.204
1997	81.522
1998	82.931
1999	82.06
2000	82.269
2001	83.987
2002	82.351
2003	81.39
2004	84.982
2005	81.545
2006	81.278
2007	83.699
2008	81.763
2009	83.025
2010	85.288
2011	85.688
2012	85.855
2013	84.062
2014	82.753
2015	85.758
2016	85.35
2017	85.418
2018	83.981
2019	84.178
2020	84.272
2021	82.708
2022	84.507