Year	% of total population
1960	55.4722881797649
1961	55.1077405145206
1962	54.673219328871
1963	54.1499869463058
1964	53.5647828167367
1965	52.9518109843526
1966	52.3293563834104
1967	51.7051639847198
1968	51.1378551575046
1969	50.6779916381031
1970	50.3714669265709
1971	50.3995044349481
1972	50.8071583818271
1973	51.3374115389229
1974	51.8818872544909
1975	52.4650285104812
1976	53.1713867580129
1977	54.0417313111484
1978	54.7313138891494
1979	55.1835327049326
1980	55.583210163962
1981	55.9365994236311
1982	56.367125762023
1983	56.8050434873651
1984	57.1229174709708
1985	57.3784146359442
1986	57.6184238450336
1987	57.8984418656971
1988	58.3541111294738
1989	58.9750151046664
1990	59.676738393121
1991	60.2479321566195
1992	60.6418382424016
1993	61.129099609121
1994	61.6266394025364
1995	62.0913895765037
1996	62.5837193911317
1997	63.3405852492111
1998	64.0695817882159
1999	64.5465731356158
2000	65.0231076692481
2001	65.4703305357978
2002	65.9076710318014
2003	66.362809838262
2004	66.864586345903
2005	67.2962053025628
2006	67.7189900451242
2007	68.1056784923775
2008	68.4301236000178
2009	68.8058881687356
2010	69.2117067152913
2011	69.594572990717
2012	69.7961367761701
2013	69.8378724900221
2014	69.8492872521709
2015	69.8216444981862
2016	69.7169891103737
2017	69.5664985438633
2018	69.4241568946955
2019	69.2759108002587
2020	69.1239457974036
2021	68.9557201290498
2022	68.7458282182816
2023	68.5194129667472