Year	% of total population
1960	21.571612301663606
1961	22.04028862998807
1962	22.498174426352364
1963	22.936325132886385
1964	23.382555579462196
1965	23.597876470852203
1966	23.820243633184315
1967	24.05904354376797
1968	24.302737799053293
1969	24.546627794963968
1970	24.789334553430763
1971	25.04442383610165
1972	25.33371852202266
1973	25.656200243838367
1974	26.01721293849141
1975	26.32998844101666
1976	26.69679406274685
1977	27.067679595004986
1978	27.52927955771523
1979	28.085690139227477
1980	28.661980302886267
1981	29.248263103318262
1982	29.79439475228675
1983	30.29992417216491
1984	30.82008868619126
1985	31.342609923623435
1986	31.864477695001643
1987	32.38143582816493
1988	32.896145201731564
1989	33.40329835144242
1990	33.92743008334632
1991	34.43438429316814
1992	34.93363949295611
1993	35.429793947257956
1994	35.9281477155521
1995	36.42265019270171
1996	36.912482483240495
1997	37.408472977599374
1998	37.90944136111219
1999	38.410641246797816
2000	38.92153948918474
2001	39.48392739355961
2002	40.0873425964839
2003	40.69273703190326
2004	41.305245463638144
2005	41.92297691105
2006	42.529922566213486
2007	43.12232070832242
2008	43.729458751035075
2009	44.334261479197195
2010	44.935654485350106
2011	45.507947704298935
2012	46.06957327334115
2013	46.63838194091077
2014	47.21399250632258
2015	47.793973810484076
2016	48.36573943397163
2017	48.933157664682916
2018	49.49572395831551
2019	50.04915439073452
2020	50.587296150192614
2021	51.114899041724826
2022	51.62321219698735
2023	52.133098615500664