Year	% of total population
1960	65.9510116169833
1961	66.2132243854564
1962	66.1715133264416
1963	66.0203544481488
1964	66.0234719664197
1965	65.9695936761538
1966	65.8577440045757
1967	65.7683554916756
1968	65.7666100470529
1969	65.7741337461537
1970	65.6492411467116
1971	65.3902988658613
1972	65.1392599641328
1973	64.9931960446339
1974	64.9207120614864
1975	64.9715797376041
1976	65.065781297161
1977	65.0891959133979
1978	65.1413024398806
1979	65.2805926340066
1980	65.4712187652259
1981	65.6858322634373
1982	65.6740463569276
1983	65.427135678392
1984	65.219883284702
1985	65.1205775166088
1986	65.1547042727847
1987	65.3243491794001
1988	65.5339285714286
1989	65.8835214446952
1990	66.4018742907347
1991	66.8568781843446
1992	66.9215067730562
1993	66.6162696364039
1994	66.2646848597035
1995	66.0416248654762
1996	65.9822126839205
1997	65.9513487039019
1998	65.8482748638527
1999	65.7615858171905
2000	65.7642881603374
2001	65.9692285492686
2002	66.0912431657256
2003	65.972933818593
2004	65.8430839949854
2005	65.7234484059611
2006	65.8616960151418
2007	66.2571676223497
2008	66.5756534039509
2009	66.6336778233853
2010	66.2641545646472
2011	65.8044572023406
2012	65.5669397845116
2013	65.3080744191787
2014	64.8850610131887
2015	64.3982841064592
2016	63.9444188545985
2017	63.5421139807374
2018	63.2060156824308
2019	62.9438130057671
2020	62.7268141308834
2021	62.4665207609544
2022	62.1290085454378
2023	61.7984918243419