Year	% of total population
1960	43.0110178611755
1961	43.15681001352081
1962	43.26405186559217
1963	43.32840117891485
1964	43.34297573893609
1965	43.31569660358996
1966	43.25997715606544
1967	43.17129800249702
1968	43.04806445072216
1969	42.894797275502455
1970	42.71064927084831
1971	42.47914726210639
1972	42.2055509390732
1973	41.9139461937244
1974	41.606639763837684
1975	41.2860031565577
1976	40.95937842875954
1977	40.62409319523921
1978	40.28029620454789
1979	39.9343702739416
1980	39.59141248339166
1981	39.25723995732604
1982	38.939602025514844
1983	38.63570113637623
1984	38.333606186548145
1985	38.0256880701761
1986	37.70480688112429
1987	37.36961106834099
1988	37.02525219115539
1989	36.675501704338274
1990	36.31499583593826
1991	35.94100634438559
1992	35.55740105833628
1993	35.16525547785364
1994	34.762598859171796
1995	34.35205123846074
1996	33.93115166685134
1997	33.49565212265686
1998	33.053287665367854
1999	32.608674722977185
2000	32.16352390164339
2001	31.716833099653684
2002	31.26352918944193
2003	30.803353850320445
2004	30.339480868467366
2005	29.878006833093224
2006	29.42128683725125
2007	28.971722179437652
2008	28.52777070995044
2009	28.088770297512497
2010	27.658176273843026
2011	27.238314809547447
2012	26.826590386784634
2013	26.41388152971464
2014	26.00925842827934
2015	25.621011447771135
2016	25.246072507937896
2017	24.88501645510467
2018	24.541103780219174
2019	24.202817582487107
2020	23.870594142623563
2021	23.553933231516215
2022	23.233914654035633
2023	22.895806388813305