Year	% of total population
1960	50.9578122852824
1961	51.7987584453143
1962	52.7868271169913
1963	53.6820412168793
1964	54.4645495472006
1965	55.1269990592662
1966	55.70572624552
1967	56.2296254105215
1968	56.6822902109178
1969	57.0605738779337
1970	58.339759505792
1971	60.1986536034141
1972	61.6780595666653
1973	62.8788156400015
1974	63.8681755057195
1975	64.6877867957322
1976	65.3756102184938
1977	65.9573812489821
1978	66.4519915936033
1979	66.8703527315185
1980	67.2189583708776
1981	67.5089101927179
1982	67.7522648172792
1983	67.9610475285516
1984	68.1479205492748
1985	68.3232750609509
1986	68.320656608985
1987	68.1180499810011
1988	67.8945606126044
1989	67.6918968554402
1990	67.5057451746193
1991	67.3343760816323
1992	67.1747723815121
1993	67.0235638557241
1994	66.8816396801969
1995	66.7481990087997
1996	66.620502016948
1997	66.6456589373964
1998	66.8294328542144
1999	67.0084232564055
2000	67.16057448327
2001	67.2915644689179
2002	67.3770937735738
2003	67.4378277278648
2004	67.1909124447421
2005	68.2657209176279
2006	71.6800977282131
2007	74.7922912136038
2008	76.4325679907663
2009	76.6057826183619
2010	75.7492249799242
2011	74.8753859805972
2012	74.2628275767975
2013	74.0505654381894
2014	74.592824903532
2015	75.2588967076166
2016	75.3527905344013
2017	74.9160598947914
2018	74.2607162529656
2019	73.2370464175603
2020	72.6489601993925
2021	72.6750079513138
2022	72.5100014025339
2023	72.3178290606912