Year	% of total population
1960	26.461416251850284
1961	26.896470894487738
1962	27.318619776920176
1963	27.740844044330014
1964	28.168051398419475
1965	28.596564120199286
1966	29.042795570356173
1967	29.508607482280414
1968	29.995162001916587
1969	30.50124363653174
1970	30.92931527032805
1971	31.232832684701194
1972	31.552868590652274
1973	31.883923509153465
1974	32.23574910072511
1975	32.60983350303881
1976	33.016222328314626
1977	33.430975833689956
1978	33.86005710155591
1979	34.33640006674254
1980	34.879344397635954
1981	35.10023699561987
1982	35.403876227990736
1983	35.734746423815324
1984	36.10209404442155
1985	36.508176367012254
1986	36.95939874343328
1987	37.45171333586681
1988	37.97201402448651
1989	38.51961722491616
1990	38.92185929324795
1991	39.01793840897705
1992	39.12808446571068
1993	39.24703116721757
1994	39.37967483092003
1995	39.53416717376403
1996	39.723114380707955
1997	39.934368352267846
1998	40.16777140094043
1999	40.42363399066235
2000	40.57662240998942
2001	40.5302083355132
2002	40.49478006602272
2003	40.47420162548932
2004	40.46306223031802
2005	40.468007358178355
2006	40.503136075094034
2007	40.55771396044687
2008	40.63443373474621
2009	40.723672165155136
2010	40.78079876745898
2011	40.820140740361836
2012	40.874273640752115
2013	40.96051923509084
2014	41.08014956765891
2015	41.2321010978478
2016	41.26149640146228
2017	41.314367919741095
2018	41.423644571472536
2019	41.57967117338022
2020	41.80361255979466
2021	42.11226698636325
2022	42.40521159609542
2023	42.65911184682249