Year	% of total population
1960	61.642466292932745
1961	61.48292621578718
1962	61.49758865382083
1963	61.57406456983061
1964	61.59828009593409
1965	61.566454755099095
1966	61.588397529078954
1967	61.628065197217836
1968	61.65536900149944
1969	61.73307941178179
1970	61.824892204094354
1971	61.944503698468395
1972	62.07148193809211
1973	62.21674481048072
1974	62.37952839001034
1975	62.566072936049785
1976	62.77639132498698
1977	62.98407811093644
1978	63.20494643953648
1979	63.449748747305385
1980	63.72628693362636
1981	64.01826497644606
1982	64.31991477209938
1983	64.66170936057526
1984	64.96063050842423
1985	65.16076031221434
1986	65.32587352088034
1987	65.47436824247453
1988	65.57099246398735
1989	65.65480440308487
1990	65.73584127466579
1991	65.78994198726377
1992	65.82325745414201
1993	65.85266069966478
1994	65.8909469018434
1995	65.94322869973129
1996	66.00947394020774
1997	66.07892924376169
1998	66.14786305361862
1999	66.21435786995485
2000	66.27623947647368
2001	66.3224913796082
2002	66.3731828449121
2003	66.4426113836707
2004	66.51149105595697
2005	66.56356654331188
2006	66.60197085960212
2007	66.62822649348404
2008	66.61590319746824
2009	66.57468094467141
2010	66.55028535598191
2011	66.48547052240481
2012	66.32575064157872
2013	66.12720989083934
2014	65.94047117679573
2015	65.78859649791113
2016	65.61873137629786
2017	65.43773586131408
2018	65.28054319942657
2019	65.12412246596945
2020	64.98629962494265
2021	64.87073704856304
2022	64.78652680197588
2023	64.67220543936548