Year	% of total population
1960	13.442564947538981
1961	13.799640066373245
1962	14.173193118888436
1963	14.568963615407116
1964	14.98223150595408
1965	15.409339978351072
1966	15.820662859042178
1967	16.239580627246752
1968	16.683445803064668
1969	17.141464952389658
1970	17.595486698461613
1971	18.103156505787993
1972	18.63574572599787
1973	19.173904053829162
1974	19.697915804310146
1975	20.22951245823054
1976	20.771198192977415
1977	21.29909745439118
1978	21.82662477143945
1979	22.295790915156548
1980	22.756487608469254
1981	23.28562367676539
1982	23.811682121461253
1983	24.34622189947455
1984	24.922430839545882
1985	25.51726177844088
1986	26.120957782762552
1987	26.730506539697437
1988	27.310261875863734
1989	27.85636319194307
1990	28.372159204985568
1991	28.774507926392687
1992	29.182469977748354
1993	29.611268663233858
1994	29.977600713058624
1995	30.30717867836733
1996	30.65994260729934
1997	31.034055682871095
1998	31.40719953156366
1999	31.776753685622108
2000	32.15738998819956
2001	32.61896820945529
2002	33.06646123522853
2003	33.528462719201144
2004	34.011294702933384
2005	34.51604374763278
2006	34.979092998557846
2007	35.37571468578076
2008	35.89223408634104
2009	36.42747960643885
2010	36.970568206227426
2011	37.52177510666654
2012	38.07021527729483
2013	38.62515290652346
2014	39.17323373215839
2015	39.72171822643713
2016	40.27353743643515
2017	40.82864450499755
2018	41.38268311132147
2019	41.93103193581341
2020	42.4791738575947
2021	43.03137965158211
2022	43.58841081271723
2023	44.14837552244777