Year	% of total population
1960	53.6334729224848
1961	53.5325394510737
1962	53.4176097209649
1963	53.2675512404459
1964	53.0505311699137
1965	52.9477851749734
1966	53.0090266743036
1967	53.084705877056
1968	53.1650929368978
1969	53.2403757399593
1970	53.3013320719653
1971	53.3397827242868
1972	53.3489070351867
1973	53.3246843409406
1974	53.245374403864
1975	53.0772167240302
1976	52.8105337851081
1977	52.4344768608912
1978	51.999788339338
1979	51.5830653160627
1980	51.201684330408
1981	50.8629016417128
1982	50.5703938757658
1983	50.3238400524703
1984	50.1270538132622
1985	49.9995475949303
1986	49.9591074768162
1987	49.9846197518566
1988	50.0597549593313
1989	50.1808529737402
1990	50.3338276052397
1991	50.5275628411862
1992	50.7622502614109
1993	51.0149969776924
1994	51.2712876533467
1995	51.5181524440757
1996	51.7492237875099
1997	51.9658011729166
1998	52.1758427188002
1999	52.3809435891842
2000	52.5847418045623
2001	52.7866497042119
2002	52.9768662539776
2003	53.13754731418
2004	53.2688952321363
2005	53.3869880573793
2006	53.4688434956929
2007	53.5197865005216
2008	53.5608483803786
2009	53.567968291341
2010	53.5483315145827
2011	53.5276734483391
2012	53.5165762748064
2013	53.528155927019
2014	53.5976105035626
2015	53.7181912696068
2016	53.8680290182127
2017	54.054620616603
2018	54.2652961888895
2019	54.4939508110901
2020	54.7617746767485
2021	55.081950165672
2022	55.4107311493251
2023	55.7272232428425