Year	% of total population
1960	52.5059636357556
1961	52.2359910546439
1962	52.0228990903384
1963	51.8474487213789
1964	51.7311355625466
1965	51.7648691613568
1966	51.8906927197558
1967	52.0027317109454
1968	52.1008402171882
1969	52.185620702653
1970	52.2575791250524
1971	52.3158195773139
1972	52.3616907215916
1973	52.3962568020175
1974	52.4501899378621
1975	52.5172176597653
1976	52.5602136149536
1977	52.5564529088067
1978	52.4930704147997
1979	52.4021166936258
1980	52.297583416515
1981	52.1651700489542
1982	52.0082311164428
1983	51.841518284129
1984	51.6600710674539
1985	51.4669857511428
1986	51.2647608140545
1987	51.0531148068652
1988	50.790968626182
1989	50.4754399834664
1990	50.1764978060379
1991	50.2928430734676
1992	50.8190742223083
1993	50.9789178804932
1994	50.8178039157143
1995	50.6783591020853
1996	50.5636705498197
1997	50.4693888132016
1998	50.3852616564613
1999	50.3069540755007
2000	50.2371562575783
2001	50.1705868325949
2002	50.0953368640922
2003	50.0036097548128
2004	49.866059353757
2005	49.6244205282512
2006	49.293581912537
2007	49.0592855320859
2008	49.050152996502
2009	49.1504843505609
2010	49.2617083419618
2011	49.3770789699053
2012	49.4776965861788
2013	49.5635629996845
2014	49.6391190027075
2015	49.6925600301048
2016	49.7339158531537
2017	49.7917852540002
2018	49.8673601584469
2019	49.9496771242115
2020	50.0444472583339
2021	50.1511639129075
2022	50.2655119806432
2023	50.3930318159873