Year	% of total population
1960	30.09835194520674
1961	30.778008866509772
1962	31.309154399914043
1963	31.853791394220625
1964	32.40763777490297
1965	32.998531354812485
1966	33.58278132482043
1967	34.118263766411914
1968	34.73045699961435
1969	35.44214856381967
1970	36.158455261676984
1971	36.26046533399096
1972	36.30685434901595
1973	36.33192255107278
1974	36.29706353950235
1975	36.24164255058975
1976	36.24389163442191
1977	36.32926341120945
1978	36.483883227129525
1979	36.64598423968322
1980	36.704083963940285
1981	36.79660869104507
1982	37.03489063278484
1983	37.35317959930619
1984	37.69538415841917
1985	38.053787855452704
1986	38.40278636112612
1987	38.79523119057908
1988	39.202284942448884
1989	39.41535110026363
1990	39.74547019338822
1991	40.15968659027828
1992	40.27822306401294
1993	40.43171141306932
1994	40.590116853535385
1995	40.775824814636636
1996	40.96303174802698
1997	41.18624830083969
1998	41.48095917075322
1999	41.78639350980087
2000	42.04664839324337
2001	42.247371969599165
2002	42.48449394386636
2003	42.802770618884544
2004	43.1106772397604
2005	43.41285657803439
2006	43.6911045904889
2007	44.001271432544115
2008	44.265200137466806
2009	44.50225778603071
2010	44.75723655264313
2011	45.054175806725496
2012	45.17653776013553
2013	45.312900501787404
2014	45.47576335157247
2015	45.75103394535893
2016	45.85994667579117
2017	45.94144080973975
2018	45.91547346802034
2019	45.752080193532464
2020	45.75532786633063
2021	45.993968493193385
2022	45.64625552298956
2023	44.78617397116014