Year	% of total population
1960	53.265369261893085
1961	52.98370193354613
1962	52.75954309130628
1963	52.566488091010285
1964	52.43966102632192
1965	52.355906680443674
1966	52.27250114122308
1967	52.21327240855874
1968	52.189010015579335
1969	52.19257923344671
1970	52.20646072817386
1971	52.228819936477514
1972	52.25956549176018
1973	52.30946072982872
1974	52.38176550935885
1975	52.4106757241718
1976	52.384769835035144
1977	52.4158967142526
1978	52.50065579309848
1979	52.58090460567173
1980	52.661254434024855
1981	52.85432622364808
1982	53.031185455114375
1983	53.090285692254014
1984	53.154684734177515
1985	53.23230989616943
1986	53.32107229106722
1987	53.423737274218276
1988	53.556235497175365
1989	53.74062972403701
1990	54.02984647776497
1991	54.42213228939678
1992	54.76292155843315
1993	55.06508824305315
1994	55.46595115326764
1995	56.03079452483462
1996	56.66216256051577
1997	57.3647085764617
1998	58.117312401693916
1999	58.882473914678954
2000	59.64755682880394
2001	60.39779711543802
2002	61.07818458653295
2003	61.7233177881747
2004	62.361277653491655
2005	62.98818130914253
2006	63.655451926337925
2007	64.31175594345027
2008	64.82640682218768
2009	65.18685268843936
2010	65.40242293569662
2011	65.44305436099833
2012	65.37217453659773
2013	65.22882081647744
2014	65.02473060639014
2015	64.8318852388079
2016	64.71972135389385
2017	64.65568472984367
2018	64.617034215788
2019	64.61886599750109
2020	64.59965111422456
2021	64.61897356807025
2022	64.75269523077421
2023	64.93756741198708