Year	% of total population
1960	4.456515622142219
1961	4.682853382124874
1962	4.904238268077795
1963	5.071348542637684
1964	5.242531373459854
1965	5.565820973531859
1966	5.908195787689679
1967	6.269850129378869
1968	6.6522141541812045
1969	7.052285057248921
1970	7.454933813869882
1971	7.876904041585249
1972	8.3209143504309
1973	8.786018179407339
1974	9.276929938814657
1975	9.794418781582815
1976	10.296145262955072
1977	10.629172772250243
1978	10.957362148503751
1979	11.285775235076596
1980	11.571239585107367
1981	11.83121894908715
1982	12.235621896618387
1983	12.695072393003453
1984	13.076424741049388
1985	13.440267867397152
1986	13.811161634979815
1987	14.160220933581435
1988	14.43910460015467
1989	14.729969334187738
1990	15.026009315411724
1991	15.334318979761703
1992	15.659230031749738
1993	15.993203368075964
1994	16.344249008200105
1995	16.71575088253569
1996	17.109028116014027
1997	17.519340721564408
1998	17.94399549718438
1999	18.37814791550403
2000	18.827103353032157
2001	19.28657590500846
2002	19.74857661788184
2003	20.212089449604957
2004	20.685155639339328
2005	21.169226052813023
2006	21.669662779690967
2007	22.168736062383978
2008	22.667032218692565
2009	23.174783897158868
2010	23.69333670589992
2011	24.228856035244583
2012	24.781036029448263
2013	25.346711136073147
2014	25.868378268026067
2015	26.371774023725912
2016	26.927355900880706
2017	27.538819147859396
2018	28.184512927454268
2019	28.541023485803713
2020	28.8989198517977
2021	29.25710076258258
2022	29.602193638468506
2023	29.92424799090092