Year	% of total population
1960	55.37594594876753
1961	55.27524347951092
1962	55.14979257896579
1963	54.971579067188515
1964	54.71634399468246
1965	54.49026490120957
1966	54.329981861139245
1967	54.17724128715222
1968	54.03129835463145
1969	53.88778786214135
1970	53.75467378179032
1971	53.620553467805614
1972	53.4788667868813
1973	53.33921591243507
1974	53.195268511224235
1975	53.04386767949845
1976	52.9000158839294
1977	52.762480876092305
1978	52.60899554387752
1979	52.4454807157928
1980	52.27363802696846
1981	52.09765539058436
1982	51.93127908995913
1983	51.75192900859036
1984	51.55204387430437
1985	51.37420028317146
1986	51.245820600560315
1987	51.176332451263214
1988	51.19384745948397
1989	51.25166070284887
1990	51.30893867452222
1991	51.39453748460049
1992	51.51525753095852
1993	51.66166082121104
1994	51.81694793995104
1995	51.98291859954643
1996	52.14526677079081
1997	52.29240807377182
1998	52.44528704724878
1999	52.57549148855363
2000	52.659408973218106
2001	52.70385501631337
2002	52.73512845038793
2003	52.77340039534457
2004	52.81094414308315
2005	52.832187363321786
2006	52.832746998346316
2007	52.82931359171398
2008	52.825442914480675
2009	52.82084743778487
2010	52.814400466021574
2011	52.8026654810322
2012	52.78505620148911
2013	52.79089434884428
2014	52.85113204396054
2015	52.94527097592776
2016	53.06444272030759
2017	53.215431346569304
2018	53.38609356040536
2019	53.570060910890724
2020	53.78369692849423
2021	54.02182666121342
2022	54.271366518681944
2023	54.5393999879433