Year	% of total population
1960	25.034632121106057
1961	25.144339223965357
1962	25.135694696268846
1963	25.101910705137826
1964	25.088730143228407
1965	25.08946022326511
1966	25.09339966072402
1967	25.09233653571138
1968	25.072268184940036
1969	25.031011706678452
1970	24.944783554009753
1971	24.819504427118005
1972	24.658672521712433
1973	24.44937975972346
1974	24.19219001284108
1975	23.890128775378017
1976	23.55098375987152
1977	23.183821802774872
1978	22.78052156205599
1979	22.335133721835618
1980	21.889174999253843
1981	21.458930269405073
1982	21.04473035748082
1983	20.65207524807147
1984	20.26405371997445
1985	19.890920391438158
1986	19.53330222541403
1987	19.19691998910836
1988	18.90772337607985
1989	18.649575352860644
1990	18.412443380218235
1991	18.155746006664867
1992	17.911738347100762
1993	17.71335725072375
1994	17.499669126093032
1995	17.27047243409402
1996	17.046008936836966
1997	16.842577076176013
1998	16.66664761819908
1999	16.517034838255594
2000	16.381700040393778
2001	16.246273047162855
2002	16.111923229271426
2003	15.976863924453774
2004	15.837858510093454
2005	15.70788184100738
2006	15.597132786991253
2007	15.507709692205847
2008	15.453452095446515
2009	15.433524690262558
2010	15.41997077351035
2011	15.402206070375499
2012	15.36250428112318
2013	15.312941302303459
2014	15.253996791137434
2015	15.188082591800704
2016	15.128188562934461
2017	15.081407188163135
2018	15.02314878471166
2019	14.946084234304031
2020	14.855249167294772
2021	14.755297500224383
2022	14.632946766848304
2023	14.488740384233033