Year	% of total population
1960	4.93604054298275
1961	5.00776091951151
1962	5.07147638471121
1963	5.1146802800044
1964	5.16530561119912
1965	5.22864590279895
1966	5.30245093480524
1967	5.38887049226217
1968	5.45796827231511
1969	5.49869056766205
1970	5.52148838525818
1971	5.51732470848592
1972	5.47731508064988
1973	5.42732668480404
1974	5.39225976946296
1975	5.38398695871816
1976	5.40597138208609
1977	5.43811838363031
1978	5.4712894055236
1979	5.51271166505601
1980	5.54101168058738
1981	5.54159481598457
1982	5.53316622493471
1983	5.52113619924154
1984	5.51211759556306
1985	5.51142385461908
1986	5.5231041026169
1987	5.54813796649132
1988	5.57672726021188
1989	5.60243607860254
1990	5.62429463037111
1991	5.64346926994936
1992	5.65818938074508
1993	5.67698800131175
1994	5.71305848145422
1995	5.76756345238193
1996	5.84087850406948
1997	5.93139411198494
1998	6.02883708623968
1999	6.11981597623364
2000	6.20005151317939
2001	6.26760506163686
2002	6.31798509536706
2003	6.35411796293022
2004	6.38203283242292
2005	6.40467086140102
2006	6.42342447438039
2007	6.43913158128844
2008	6.45340426334536
2009	6.46750634496655
2010	6.48554841122306
2011	6.51500799105331
2012	6.55861261544209
2013	6.62881678375049
2014	6.789856209869
2015	7.02375023656627
2016	7.23221256980496
2017	7.47151841765248
2018	7.75751139075885
2019	8.07365222214524
2020	8.42740854894926
2021	8.75313385455416
2022	9.11695858761381
2023	9.54604717124752