Year	% of total population
1960	40.7361659566479
1961	40.7477648765608
1962	40.7731326190466
1963	40.8751737249766
1964	41.072802277477
1965	41.3689063581934
1966	41.7440223093157
1967	42.1505466343625
1968	42.5735291240073
1969	43.001006445778
1970	43.4420766709719
1971	43.8988604532106
1972	44.3656139587449
1973	44.8285133881474
1974	45.2783482455876
1975	45.7290014062478
1976	46.1814197308581
1977	46.6386362107724
1978	47.0974115067244
1979	47.5582902613242
1980	48.0171918603467
1981	48.4498806551087
1982	48.8509152687137
1983	49.2273715051032
1984	49.5773355642793
1985	49.8910724039504
1986	50.18965685062
1987	50.4452831981166
1988	50.6580381091395
1989	50.8506014669258
1990	50.9925069089095
1991	51.0829707370927
1992	51.1226241569164
1993	51.1124982164954
1994	51.0283690702044
1995	50.9004716351062
1996	50.7239489966686
1997	50.4626320853539
1998	50.1350640032346
1999	49.7606137253798
2000	49.3471726597354
2001	48.8832581283516
2002	48.382707542387
2003	47.8679662916056
2004	47.3456724862283
2005	46.7687613295276
2006	46.1300999861265
2007	45.4773832060349
2008	44.831245260192
2009	44.2101765496317
2010	43.6324251522458
2011	43.1496164370549
2012	42.7466863981604
2013	42.375582391374
2014	42.0274987799651
2015	41.7028290068099
2016	41.4077661570194
2017	41.1184133147908
2018	40.8203971921546
2019	40.5034366361911
2020	40.1889084811258
2021	39.8721073358341
2022	39.4972429574081
2023	39.0708007950694