Year	% of total population
1960	26.49244380925406
1961	26.835495846808758
1962	27.16395134871223
1963	27.50642147787
1964	27.86958475038187
1965	28.25501973345323
1966	28.58760035241048
1967	28.93970516807662
1968	29.31827629991234
1969	29.7094800779625
1970	30.086391635776483
1971	30.234447895624612
1972	30.3513135309757
1973	30.488334261270175
1974	30.646538572364218
1975	30.827962511976704
1976	30.96778865771601
1977	31.092296552426188
1978	31.223464339906236
1979	31.347597603580876
1980	31.484669745397245
1981	31.612576588440096
1982	31.75274932158572
1983	31.911901923462555
1984	32.088166206683965
1985	32.272545814638995
1986	32.47577452119323
1987	32.715882814481525
1988	32.91761031046782
1989	33.11888339441845
1990	33.311724294226785
1991	33.42377208185745
1992	33.49869586523944
1993	33.592876366382185
1994	33.71786540200984
1995	33.861522324899354
1996	33.9809149811277
1997	34.09167148977635
1998	34.21583857654619
1999	34.35178728466712
2000	34.4701885613692
2001	34.555873177701756
2002	34.67489274978705
2003	34.80087535718364
2004	34.92475308359727
2005	35.05935512684283
2006	35.17200018715404
2007	35.27975889934321
2008	35.38399449141112
2009	35.521753814849944
2010	35.67848732453298
2011	35.88495216502662
2012	36.03270594270052
2013	36.175904839196654
2014	36.31712692684906
2015	36.46464566674301
2016	36.61486334630603
2017	36.79500259635218
2018	36.98961617830729
2019	37.10526501087243
2020	37.18805296939994
2021	37.43054829356908
2022	37.72582843493055
2023	37.76668439196149