Year	% of total population
1960	54.5996521284573
1961	54.3500199136973
1962	54.0968334587952
1963	53.8371954049825
1964	53.5947134438987
1965	53.2111993036702
1966	52.7291364141112
1967	52.4078158855336
1968	52.2701505211076
1969	52.2830423335971
1970	52.4152402434449
1971	52.9244582592866
1972	53.9104559868061
1973	55.0979612830824
1974	56.3294799289796
1975	57.5431446443822
1976	58.6793936889256
1977	59.7009553256432
1978	60.6022144860265
1979	61.3913033445679
1980	62.0819371475062
1981	62.598180587368
1982	62.9683619893764
1983	63.3022253241018
1984	63.5970588059897
1985	63.8392358685055
1986	64.0233365023234
1987	64.1359340455607
1988	64.1653382270944
1989	64.1206796449282
1990	64.0392641546446
1991	63.968977335338
1992	64.0309665085577
1993	64.2865297151836
1994	64.6721303185482
1995	65.147063142198
1996	65.7048688594024
1997	66.343825294859
1998	67.0159193496941
1999	67.663994972061
2000	68.2626974510923
2001	68.8274812839863
2002	69.4153405374273
2003	70.3106880572151
2004	71.663061175762
2005	73.0844497467073
2006	74.3124604459101
2007	75.3634679183341
2008	76.284996489825
2009	77.1579610030925
2010	77.4142263241007
2011	77.2524352825769
2012	77.6188538291075
2013	77.7236653237408
2014	77.1236284301878
2015	76.8576624169874
2016	77.0321729834336
2017	77.2427057578283
2018	77.2701188935008
2019	76.9835265095401
2020	76.5039063425358
2021	76.1340986991083
2022	76.0576960304517
2023	76.0893821278154