Year	% of total population
1960	14.705390657282935
1961	15.090123233124734
1962	15.484075517103685
1963	15.897591949916192
1964	16.329207854023828
1965	16.7786496991592
1966	17.20795571819456
1967	17.652479935898317
1968	18.110951523374094
1969	18.582004853875173
1970	19.052719159514012
1971	19.593377891851613
1972	20.14975403858879
1973	20.71632096528616
1974	21.294942547619296
1975	21.88312439242845
1976	22.487662966903205
1977	23.05398315175051
1978	23.620775180723662
1979	24.100331710544264
1980	24.58509378308814
1981	25.192577755796545
1982	25.79780680127516
1983	26.40843250040917
1984	27.04929092379038
1985	27.731122758610642
1986	28.404992254387743
1987	29.070640688575978
1988	29.725469654914342
1989	30.365455684331362
1990	30.970541109698768
1991	31.410329611759824
1992	31.837491200367896
1993	32.259126285472256
1994	32.66626950797488
1995	33.06728280949848
1996	33.4740743862744
1997	33.92780632952197
1998	34.39329311438348
1999	34.86351803502502
2000	35.33704937829561
2001	35.944908022293696
2002	36.55488138106838
2003	37.17331288072469
2004	37.79897678376424
2005	38.434483767503345
2006	39.07930362286386
2007	39.72159767923381
2008	40.36053533089437
2009	41.00151175210882
2010	41.64715790474657
2011	42.28829917499834
2012	42.92588497776231
2013	43.554093888503424
2014	44.18017500911205
2015	44.80586325772169
2016	45.42506637636205
2017	46.03947782428274
2018	46.64942582862759
2019	47.25541321638051
2020	47.857831024778015
2021	48.45480626991795
2022	49.04738454863141
2023	49.635409702793105