Year	% of total population
1960	56.6019284902312
1961	56.73607580697987
1962	56.69230954769983
1963	56.313051253873894
1964	56.013598137999836
1965	55.94108810791687
1966	55.953601280417494
1967	56.12640632536562
1968	56.3070104880989
1969	56.42730433499431
1970	56.61285208725571
1971	56.77706096193303
1972	57.010945466175535
1973	57.24532911806324
1974	57.30746149821172
1975	57.32490057377044
1976	57.37053190236945
1977	57.71586938425793
1978	58.534484778128885
1979	59.37698374896556
1980	60.07540114708175
1981	60.719615928020275
1982	61.23870892338979
1983	61.82152627616367
1984	62.493517781213995
1985	63.103147236121046
1986	63.61581483745089
1987	63.98703858573321
1988	64.29263502042187
1989	64.51778904519992
1990	64.60443353326133
1991	64.6928408380689
1992	64.83140042767015
1993	64.96517233781873
1994	65.16017186374755
1995	65.42942619183378
1996	65.77560736680279
1997	66.22456787614088
1998	66.67110800840243
1999	67.09652695823809
2000	67.56067345749534
2001	68.0840170844359
2002	68.68555683622986
2003	69.26950856749876
2004	69.8213034487957
2005	70.39498221472617
2006	70.84908339879806
2007	71.13902373143829
2008	71.36333612928303
2009	71.51842169902397
2010	71.6070966988671
2011	71.61051202357994
2012	71.49677348317387
2013	71.30263373763523
2014	71.0452421812604
2015	70.74393294377425
2016	70.41618235295843
2017	70.01629060892695
2018	69.6301103206832
2019	69.30282331949054
2020	69.01826180749542
2021	68.834701229114
2022	68.70921107449952
2023	68.60451352587866