Year	% of total population
1960	11.291933228260971
1961	11.444758582652062
1962	11.610021579456578
1963	11.781414504467353
1964	11.960981312077166
1965	12.156918881895091
1966	12.375789161453046
1967	12.590160922590048
1968	12.817385224869795
1969	13.061008655557854
1970	13.302562759802349
1971	13.502579751021482
1972	13.688490858425329
1973	13.879621940749493
1974	14.07591251421904
1975	14.276857225087602
1976	14.467229484447605
1977	14.650073868459566
1978	14.834151196145068
1979	14.977150090376117
1980	15.065580587740266
1981	15.164037963460407
1982	15.269410602264024
1983	15.37574908461534
1984	15.47643680358763
1985	15.58265297929212
1986	15.683155051368285
1987	15.780799262578727
1988	15.888943457401865
1989	15.978391549945012
1990	16.041229075372204
1991	16.083608190706467
1992	16.11532611069425
1993	16.141785690156667
1994	16.208262885772854
1995	16.315543715381363
1996	16.44022839287207
1997	16.584212794736533
1998	16.723891303666065
1999	16.872678789986995
2000	17.05376143113986
2001	17.2611213727735
2002	17.50125344330543
2003	17.747438689905213
2004	17.990905714961578
2005	18.234884782637156
2006	18.48214285892599
2007	18.744670216217784
2008	18.98088315016175
2009	19.21024228095738
2010	19.44009647716513
2011	19.67577925954516
2012	19.880348042700508
2013	20.030592577259142
2014	20.182600464332737
2015	20.325271667714183
2016	20.466365841501133
2017	20.618646725382032
2018	20.781713946235556
2019	20.895601811881306
2020	21.044008658767357
2021	21.20837353283686
2022	21.698118001821786
2023	21.883381745699573