Year	% of total population
1960	20.985112656498522
1961	21.68279714015474
1962	22.409686685540393
1963	23.170066787690352
1964	23.97007309120521
1965	24.497311036323744
1966	25.048737715366
1967	25.638570094304885
1968	26.27060114168809
1969	26.946316505121747
1970	27.669589663918938
1971	28.447752911845242
1972	29.277266862285256
1973	30.135779461606145
1974	30.541821988603218
1975	30.73613775512973
1976	30.9432542179355
1977	31.13618491563098
1978	31.310605253449825
1979	31.482369568576935
1980	31.647078576546363
1981	31.81170658592991
1982	31.98434939011926
1983	32.154126713226994
1984	32.332314314404194
1985	32.53633432970996
1986	32.70502659520407
1987	32.85681870642427
1988	33.01469792406607
1989	33.17323618492517
1990	33.337063235304086
1991	33.524274066959784
1992	33.73323858698533
1993	33.94603483169812
1994	34.16749536151405
1995	34.40816026621666
1996	34.67591533906177
1997	34.95805501809962
1998	35.26164615429296
1999	35.58978425650174
2000	35.94227075847119
2001	36.312197877020296
2002	36.70264658297501
2003	37.11770952903411
2004	37.559177730992324
2005	38.016098173086625
2006	38.41336958369211
2007	38.83861580209678
2008	39.299130420453686
2009	39.77796862326569
2010	40.2668076397888
2011	40.776234708329596
2012	41.316735199891255
2013	41.88349910992988
2014	42.4786784217395
2015	43.085586147695935
2016	43.648357287533656
2017	44.02093983473704
2018	44.227938488333315
2019	44.06352860715694
2020	44.03553992681265
2021	44.12065191772696
2022	44.373058469495255
2023	44.72001511063572