Year	% of total population
1960	22.128872874180917
1961	22.61206938726808
1962	23.079966039411676
1963	23.522560267461127
1964	23.973707019755643
1965	24.17760144345502
1966	24.38743561654904
1967	24.614318385131494
1968	24.841611094701197
1969	25.064407090202327
1970	25.286512272844018
1971	25.535998034077828
1972	25.821147353677862
1973	26.142778038066517
1974	26.509351301712528
1975	26.825230617309398
1976	27.202691319007986
1977	27.583810585121554
1978	28.062751621182535
1979	28.64366504922578
1980	29.24027556211699
1981	29.844970407993202
1982	30.41091057569647
1983	30.932516970331054
1984	31.46610970433885
1985	31.999588486440008
1986	32.53156202694533
1987	33.05908587723093
1988	33.58456530043778
1989	34.10435168137876
1990	34.64362120053497
1991	35.16991528092549
1992	35.69234176406291
1993	36.212123862098146
1994	36.73277912488069
1995	37.253121610887185
1996	37.77843654203507
1997	38.3075857108298
1998	38.84056513075527
1999	39.37546517134653
2000	39.92010121129501
2001	40.52120912425807
2002	41.17323033182475
2003	41.83117736122627
2004	42.49516444024367
2005	43.163913210285955
2006	43.82191108059602
2007	44.470524622907476
2008	45.124365980872916
2009	45.77875752228319
2010	46.42842935664203
2011	47.05262357372476
2012	47.66846132412732
2013	48.29241235028602
2014	48.92250357446331
2015	49.548821295262414
2016	50.1653002856566
2017	50.77698894203661
2018	51.384214981106425
2019	51.98315280863524
2020	52.566562955349276
2021	53.138473224402496
2022	53.690332131919604
2023	54.241409800053134