Year	% of total population
1960	23.417904526980436
1961	23.811855220235987
1962	24.204887760480055
1963	24.61209788356428
1964	25.038350654037938
1965	25.45786606166821
1966	25.905530642714965
1967	26.382819453976584
1968	26.89129542510704
1969	27.425762940732273
1970	27.97118389934917
1971	28.396077456533536
1972	28.78835118013504
1973	29.16605232712921
1974	29.522611884242238
1975	29.88379246651239
1976	30.268767881294277
1977	30.663956027687153
1978	31.073065292784435
1979	31.50524410638515
1980	31.967177184783647
1981	32.17801506586074
1982	32.334719262991555
1983	32.474552454533914
1984	32.63029706401366
1985	32.80532938069332
1986	32.99879163740542
1987	33.21052752335172
1988	33.43987713683164
1989	33.684163518037806
1990	33.912664232448996
1991	34.071526350593324
1992	34.191696649273155
1993	34.30875982440467
1994	34.43746258417869
1995	34.587231131268204
1996	34.75469418881693
1997	34.932447586517
1998	35.1302154704147
1999	35.348304469175524
2000	35.57086333384264
2001	35.669739199750474
2002	35.76739374516359
2003	35.86654354624426
2004	35.98024441809437
2005	36.107081755370636
2006	36.24865792398205
2007	36.407280468338456
2008	36.58207594164866
2009	36.75278745400102
2010	36.834326451421376
2011	36.9685328247917
2012	37.10518720552228
2013	37.25548324735614
2014	37.4201646820235
2015	37.5961765249228
2016	37.75601026458188
2017	37.93008806255618
2018	38.13065209839753
2019	38.25143007048052
2020	38.39811521726345
2021	38.59155766137303
2022	38.788220782178676
2023	38.94963891004088