Year	% of total population
1960	52.0329098274268
1961	51.241091069372715
1962	50.4246947237025
1963	49.60363712025967
1964	48.776207683727336
1965	48.0092541576207
1966	47.24201905180133
1967	46.475003002947346
1968	45.70654874095436
1969	44.94163145066314
1970	44.180964071115845
1971	43.40788734974486
1972	42.63752379404298
1973	41.88949905202233
1974	41.147294912837914
1975	40.40546698818797
1976	39.66947615895928
1977	38.93183248374404
1978	38.195594653468405
1979	37.46612842959826
1980	36.74655598022554
1981	36.06611861201644
1982	35.414357584062785
1983	34.76960576401183
1984	34.13014690023545
1985	33.49589230096584
1986	32.87664408131679
1987	32.26890949799638
1988	31.66839949947154
1989	31.07819385812164
1990	30.500286829289188
1991	29.952652869901332
1992	29.429760440963268
1993	28.92523432337799
1994	28.41314396995076
1995	27.905862858938164
1996	27.4228258428213
1997	26.929263153243916
1998	26.44041932051885
1999	25.969027769165635
2000	25.501676058699594
2001	25.129531709470424
2002	24.774433705184347
2003	24.422449805151263
2004	24.084739066437066
2005	23.752105860452904
2006	23.42245163779044
2007	23.09681770616295
2008	22.77833200518166
2009	22.467858524429165
2010	22.165653731727243
2011	21.857694745574804
2012	21.558233101226758
2013	21.264929976380483
2014	20.974431347652445
2015	20.687076463093522
2016	20.40406254744549
2017	20.124836148235257
2018	19.850104218421528
2019	19.578146461032162
2020	19.307956115313853
2021	19.041285862432655
2022	18.777571655948194
2023	18.515605354622036