Year	% of total population
1960	43.7965031395202
1961	43.901761270631
1962	43.9791825891171
1963	44.0519112003738
1964	44.1435487619679
1965	44.2440118095216
1966	44.335013052084
1967	44.4271660422938
1968	44.519598874809
1969	44.6226714064606
1970	44.740220525962
1971	44.8659167585196
1972	44.9963498145517
1973	45.1318515259259
1974	45.2694223442917
1975	45.4038859032658
1976	45.5339418937288
1977	45.6508364072209
1978	45.7444122670231
1979	45.8147524636119
1980	45.8624753797422
1981	45.8883191999085
1982	45.8942137891731
1983	45.8828987261227
1984	45.8496481082492
1985	45.7922555869407
1986	45.7154362572215
1987	45.6202342107468
1988	45.5038703461414
1989	45.3632331532868
1990	45.2027207802377
1991	45.0244103357325
1992	44.8291968840434
1993	44.6185163172152
1994	44.398174075627
1995	44.1886981063033
1996	43.96813366792
1997	43.6997031822956
1998	43.4022545538066
1999	43.1363955380318
2000	42.9201430381234
2001	42.7621597548814
2002	42.6461518071206
2003	42.5371571170303
2004	42.4154595187952
2005	42.3035324180319
2006	42.1456186548712
2007	41.996274020008
2008	41.8942312729872
2009	41.8240045184711
2010	41.8110792158378
2011	41.7959828395881
2012	41.7579489721884
2013	41.6881513387762
2014	41.5811092803438
2015	41.4447183034749
2016	41.2887879406687
2017	41.1129476829587
2018	40.9185391886516
2019	40.7162019069416
2020	40.497827678269
2021	40.2484190259865
2022	39.9603003763774
2023	39.644391266031