Year	years
1960	60.415
1961	60.901
1962	61.111
1963	61.624
1964	62.083
1965	62.663
1966	63.367
1967	63.921
1968	64.428
1969	65.016
1970	65.361
1971	66.301
1972	66.716
1973	67.953
1974	68.454
1975	69.4
1976	70.294
1977	71.288
1978	72.239
1979	72.423
1980	72.899
1981	73.799
1982	74.654
1983	75.079
1984	75.091
1985	75.111
1986	75.505
1987	75.741
1988	76.106
1989	76.263
1990	76.63
1991	76.591
1992	76.627
1993	76.703
1994	76.67
1995	76.552
1996	76.804
1997	77.07
1998	76.896
1999	77.138
2000	77.586
2001	77.545
2002	77.983
2003	78.072
2004	78.331
2005	78.505
2006	78.514
2007	78.462
2008	78.445
2009	78.672
2010	78.67
2011	79.348
2012	79.283
2013	79.403
2014	78.774
2015	79.086
2016	79.459
2017	79.377
2018	79.484
2019	79.427
2020	79.277
2021	77.023
2022	77.32