Year	% of total population
1960	54.0786672202141
1961	53.9684626479957
1962	54.0651173807964
1963	54.178733213215
1964	54.2880459596559
1965	54.3855171411455
1966	54.4817290614905
1967	54.5915498787567
1968	54.7396842366897
1969	54.9528309818891
1970	55.2510398345574
1971	55.6548833291657
1972	56.2169217215388
1973	56.9395052434846
1974	57.7466973950875
1975	58.5917635343519
1976	59.453682244673
1977	60.3151086011885
1978	61.1614385505697
1979	61.9705311294484
1980	62.7198337280804
1981	63.3850984088369
1982	63.9547655660513
1983	64.4205530071356
1984	64.7584762111265
1985	64.9672176150256
1986	65.0607029979196
1987	65.0807617974939
1988	65.0580288766558
1989	64.9894397617045
1990	64.8900582839057
1991	64.7770302088104
1992	64.6680831217288
1993	64.6026064790367
1994	64.5798334522334
1995	64.573483319167
1996	64.5899636090185
1997	64.6309265319021
1998	64.6844589175252
1999	64.7445227449625
2000	64.8312874759588
2001	64.9789164551201
2002	65.2198822343642
2003	65.5400117393856
2004	65.8809095483275
2005	66.2084162348995
2006	66.4281323497969
2007	66.489503318115
2008	66.4627894415101
2009	66.3948156168397
2010	66.2930301575799
2011	66.1914378403788
2012	66.1195436371788
2013	66.0362594500891
2014	65.9316591826836
2015	65.8413535253462
2016	65.8169316414772
2017	65.8923360802684
2018	67.6922618854278
2019	68.6292279130946
2020	68.0400552595641
2021	68.0189977828915
2022	67.8976373627811
2023	67.6884790995278