Year	% of total population
1960	56.3727115961846
1961	55.7276324948167
1962	55.4188708981407
1963	55.4057511010109
1964	55.5611146469904
1965	55.8078099870934
1966	56.1480080278669
1967	56.594113382476
1968	57.1761584311913
1969	57.9316596750989
1970	58.8532975952521
1971	59.8272230710134
1972	60.7770181357683
1973	61.754933108275
1974	62.7458380562187
1975	63.7331634622826
1976	64.6819909966774
1977	65.6119752114889
1978	66.5580613815054
1979	67.42234496827
1980	68.1002650473447
1981	68.505627107482
1982	68.7079208926814
1983	68.8641382815
1984	68.9972065619826
1985	69.0844987138929
1986	69.2414748713359
1987	69.5340602986484
1988	69.8547545531894
1989	70.1502840053763
1990	70.3666828892366
1991	70.4878004310666
1992	70.5742086532326
1993	70.677589506927
1994	70.8120761773902
1995	70.954420975874
1996	71.0745031514057
1997	71.1916936438907
1998	71.3293077550877
1999	71.5181028143104
2000	71.7742466233707
2001	71.9731475577999
2002	72.0987488843013
2003	72.2943650337441
2004	72.612804933373
2005	73.0185402662251
2006	73.4332965381046
2007	73.7627126245393
2008	74.0121125957124
2009	74.2313479486849
2010	74.442040326326
2011	74.5269177614601
2012	74.331862052568
2013	73.938238767223
2014	73.4439417517219
2015	72.9021653648252
2016	72.2311017846195
2017	71.4332142981352
2018	70.6356165262435
2019	69.8085536633845
2020	68.995998177566
2021	68.2230561732057
2022	67.486755336089
2023	66.7578197659421