Year	% of total population
1960	55.96827048431514
1961	55.695850086306905
1962	55.41063136206989
1963	55.120019869717986
1964	54.90976021294979
1965	54.81156080095097
1966	54.76185590331665
1967	54.748859599119804
1968	54.75954390944698
1969	54.78510766798715
1970	54.83645746880276
1971	54.88962416376101
1972	54.937638393152795
1973	54.993631544098946
1974	55.05165569796466
1975	55.13058046219546
1976	55.2254746351428
1977	55.334641144749256
1978	55.463155227363664
1979	55.592650268665345
1980	55.723194003560266
1981	55.84758818169393
1982	55.95902904857374
1983	56.062039139873555
1984	56.14960995792675
1985	56.242577762948514
1986	56.35238629469783
1987	56.47876904603866
1988	56.62704119846365
1989	56.786222334990484
1990	56.957025007929225
1991	57.137225211989865
1992	57.29774242561456
1993	57.46143523582195
1994	57.66118823585514
1995	57.89318371742428
1996	58.16046550396759
1997	58.44795324569532
1998	58.74603437369815
1999	59.055862036149726
2000	59.380897332936804
2001	59.70631605728044
2002	60.00401218242092
2003	60.296131103702294
2004	60.615284949621916
2005	60.9503383916451
2006	61.293135536285256
2007	61.63553627845798
2008	61.97547604506143
2009	62.324453840957744
2010	62.68382850634279
2011	63.0457301554034
2012	63.397998349986324
2013	63.737722916545586
2014	64.06355654445728
2015	64.37239651191994
2016	64.679469086551
2017	64.99103272304738
2018	65.28503036283588
2019	65.55827651108952
2020	65.8386869958884
2021	66.12702256573256
2022	66.40168667708045
2023	66.6301164850046