Year	% of total population
1960	22.758360902196547
1961	23.15874469341641
1962	23.57385761035499
1963	24.00242890087091
1964	24.448888903009784
1965	24.884457788522713
1966	25.34706647787348
1967	25.838389579595
1968	26.360903478311045
1969	26.910120711774272
1970	27.469890659971014
1971	27.89540917230078
1972	28.301083859001302
1973	28.699206541714663
1974	29.07243322856083
1975	29.448906911186835
1976	29.84900127977936
1977	30.258718444569055
1978	30.681996922242117
1979	31.12871583085796
1980	31.602846891693094
1981	31.786825890194034
1982	31.924402442962187
1983	32.061070183541446
1984	32.213255754440766
1985	32.385453883665384
1986	32.577355822790174
1987	32.78852892883003
1988	33.01719467042463
1989	33.2602758681983
1990	33.49115062508039
1991	33.677698905687784
1992	33.82385715093708
1993	33.96329848908646
1994	34.11371092412456
1995	34.285251113360424
1996	34.47486724642769
1997	34.67528755340694
1998	34.894860529455826
1999	35.13443181845378
2000	35.377856227930266
2001	35.488846029420166
2002	35.60443797695011
2003	35.735375446762454
2004	35.880380917256744
2005	36.036686771597
2006	36.207213435455714
2007	36.39491390550077
2008	36.59919642938738
2009	36.79791686185049
2010	36.8967570572708
2011	37.051102675997036
2012	37.206419102128585
2013	37.37596209639479
2014	37.559506303037026
2015	37.75404056486139
2016	37.92346592996879
2017	38.085689952816274
2018	38.23918537426296
2019	38.310999586920104
2020	38.436386792164285
2021	38.61356466030112
2022	38.812635411887726
2023	38.99754836056079