Year	% of total population
1960	49.0619071255156
1961	48.7744890220234
1962	48.5707494128006
1963	48.4607989139112
1964	48.3957228514785
1965	48.3433892210121
1966	48.3568026250727
1967	48.4673267191793
1968	48.6670318391398
1969	48.9430510866873
1970	49.2406394196794
1971	49.5503322832246
1972	49.901699563643
1973	50.2918360325718
1974	50.7271648834949
1975	51.2069090612497
1976	51.7089269179949
1977	52.2184827069969
1978	52.7315359289506
1979	53.2419156632577
1980	53.7685117620487
1981	54.3119707526145
1982	54.8367546118411
1983	55.3136762952577
1984	55.7473180959755
1985	56.1650151527818
1986	56.5646576878626
1987	56.9371613437557
1988	57.2791181186054
1989	57.5742304924798
1990	57.8277835164632
1991	58.0645037193604
1992	58.2934805731258
1993	58.516020302864
1994	58.7246214170137
1995	58.9325357479453
1996	59.1529712360855
1997	59.3893173511511
1998	59.6627701427611
1999	59.9518402106481
2000	60.2183767160222
2001	60.4731816021833
2002	60.745760622874
2003	61.049947913934
2004	61.39733523592
2005	61.7858684475155
2006	62.2046369690854
2007	62.6389168669565
2008	63.0588481139899
2009	63.4463028374302
2010	63.790822294544
2011	64.0923269670832
2012	64.3469604992382
2013	64.5426265950619
2014	64.7134514640227
2015	64.8879782029923
2016	65.046791566713
2017	65.1767302411779
2018	65.2746234846485
2019	65.3429174593642
2020	65.4116464562757
2021	65.4722596007231
2022	65.4874095864561
2023	65.4972912005213