Year	% of total population
1960	41.0386579156364
1961	41.4956430706721
1962	41.9220591259753
1963	42.284534540697
1964	42.5505993419745
1965	42.6885110825067
1966	42.7184243308445
1967	42.6846210390198
1968	42.5796294318315
1969	42.393195147002
1970	42.1138402679708
1971	41.744392445933
1972	41.3041818056295
1973	40.7868240282983
1974	40.1999998839661
1975	39.572932868751
1976	38.9187082651572
1977	38.2485192599814
1978	37.5793571731473
1979	36.9253033218717
1980	36.3065951218219
1981	35.7370207778836
1982	35.2172463376868
1983	34.739990887043
1984	34.3006754583057
1985	33.9054773033602
1986	33.5509527527433
1987	33.2364016658863
1988	32.972200433433
1989	32.7519517126033
1990	32.5635104977428
1991	32.3920230315333
1992	32.2312840088155
1993	32.0717160744634
1994	31.904674516397
1995	31.7194135607381
1996	31.4755217371767
1997	31.1372309655505
1998	30.6954712081692
1999	30.1596971567142
2000	29.5438700033516
2001	28.848047889214
2002	28.075129876221
2003	27.2520353276165
2004	26.3840221901328
2005	25.4710426645616
2006	24.5405770218756
2007	23.6003962926443
2008	22.6787612109541
2009	21.7987870159832
2010	20.9785338399351
2011	20.2468305423535
2012	19.6161701518536
2013	19.0870740495197
2014	18.6119110905232
2015	18.1666797052053
2016	17.7939010705424
2017	17.4432121082673
2018	17.0830823496453
2019	16.7517576825922
2020	16.4715191611974
2021	16.2817238878905
2022	16.1466104637724
2023	16.0119953156979