Year	% of total population
1960	54.82802321491113
1961	54.636844307016254
1962	54.40789554197082
1963	54.14071007994732
1964	53.83704388823439
1965	53.54841956645629
1966	53.297904514066765
1967	53.08046972393871
1968	52.90047521708313
1969	52.75553430727653
1970	52.640330012663725
1971	52.53374584502035
1972	52.43883808173189
1973	52.371271709273785
1974	52.32602914370419
1975	52.30397419277183
1976	52.29910888116307
1977	52.30808659705665
1978	52.314189238781054
1979	52.33847043968625
1980	52.47293712632887
1981	52.628308468092385
1982	52.66720486619165
1983	52.59838497327239
1984	52.46637984197055
1985	52.36851871275524
1986	52.318381834246594
1987	52.275614986760914
1988	52.24407604360289
1989	52.22931501088763
1990	52.2392758091675
1991	52.26674674389819
1992	52.2324034754153
1993	52.23494751236078
1994	52.336062982639405
1995	52.48623142569782
1996	52.70021936500542
1997	52.94719872448031
1998	53.223188271957845
1999	53.50375293609945
2000	53.81091486324368
2001	54.113411305435335
2002	54.32777026368837
2003	54.50182256486544
2004	54.69483360029236
2005	54.88749581536643
2006	55.07524698412417
2007	55.25215581882507
2008	55.40449803117236
2009	55.55041261924246
2010	55.70014304094762
2011	55.82560790281245
2012	55.90532101389174
2013	55.964804566065354
2014	56.04225306844097
2015	56.13209463162564
2016	56.229271101616575
2017	56.367988055007785
2018	56.540250674939884
2019	56.719564895830885
2020	56.92774434814347
2021	57.16667700850111
2022	57.4356715048536
2023	57.734072966192