Year	% of total population
1960	56.38896925895776
1961	56.61145670774073
1962	56.603651608099895
1963	56.237877369466425
1964	55.91714168063758
1965	55.79250943453747
1966	55.741374217565514
1967	55.84394153173575
1968	55.948926419228336
1969	55.993350854686604
1970	56.09763688284494
1971	56.20031231945306
1972	56.37447044095794
1973	56.552225236964475
1974	56.57245720313449
1975	56.56776758036815
1976	56.605662670186334
1977	56.96449650063801
1978	57.81590200735268
1979	58.70636506047544
1980	59.45535633434133
1981	60.13131891077186
1982	60.6787499140926
1983	61.31813765771826
1984	62.06685526295136
1985	62.75389112794185
1986	63.35000262535995
1987	63.810777483502505
1988	64.20440469318481
1989	64.50793191361373
1990	64.64795228595658
1991	64.76847513686928
1992	64.9288800814628
1993	65.07439337379721
1994	65.26648038350157
1995	65.51689392796544
1996	65.82110988324602
1997	66.20164251072384
1998	66.55971766986652
1999	66.87890362942136
2000	67.22586613446114
2001	67.6242706873685
2002	68.10717452302262
2003	68.59807039494261
2004	69.08107316925965
2005	69.58561645892003
2006	69.96320215541283
2007	70.17141461602245
2008	70.31593462515193
2009	70.4070200621022
2010	70.45485126619401
2011	70.45338567308018
2012	70.3528198821605
2013	70.17198375107083
2014	69.94655503908609
2015	69.69908369653591
2016	69.43197802146916
2017	69.09075888335245
2018	68.75993577034858
2019	68.4882486681084
2020	68.25858249876237
2021	68.12512779917533
2022	68.02089075902235
2023	67.94478286215691