Year	% of total population
1960	55.1872194798219
1961	54.5358850400086
1962	54.1369017023157
1963	53.8523414828946
1964	53.6442512115062
1965	53.6415838835531
1966	53.8019540570608
1967	53.9925491179836
1968	54.2197755160278
1969	54.4546512340009
1970	54.669614346184
1971	54.8476569980237
1972	55.0242053684423
1973	55.2651735392392
1974	55.5651500873006
1975	55.8937936997779
1976	56.2161206555412
1977	56.5292090297627
1978	56.8483961080794
1979	57.1677931443341
1980	57.4970016598898
1981	57.7944363166182
1982	58.029679823492
1983	58.2071446664092
1984	58.3087080140234
1985	58.3267802034096
1986	58.2680252822219
1987	58.1488325785783
1988	57.9738585113841
1989	57.7628526941837
1990	57.5310587626009
1991	57.318393642504
1992	57.0490548256549
1993	56.6504685884511
1994	56.4307445251705
1995	56.4674718957388
1996	56.661809438808
1997	57.0719122502894
1998	57.6352147836001
1999	58.3188236063335
2000	59.0485214121789
2001	59.7849338464911
2002	60.5402732619782
2003	61.2872792570472
2004	62.0262154859608
2005	62.7275140433576
2006	63.3665473237421
2007	63.9320098312191
2008	64.4316016623592
2009	64.8557235433134
2010	65.1192955800148
2011	65.1452798556571
2012	64.9396598922522
2013	64.5968745847583
2014	64.1772112167728
2015	63.6875134246005
2016	63.1868738990868
2017	62.7112830764186
2018	62.2190475142221
2019	61.7381547313787
2020	61.3788068061724
2021	61.150166209809
2022	61.0118083926654
2023	60.9535142767318