Year	% of total population
1960	41.55466810020721
1961	41.78403239236537
1962	42.04518655780211
1963	42.33957946767014
1964	42.667255712735106
1965	42.97801559835582
1966	43.24764258522357
1967	43.48234608788386
1968	43.67738342421266
1969	43.83501969512958
1970	43.96234396108191
1971	44.08416324594881
1972	44.194869523149656
1973	44.275250854660385
1974	44.33235069439827
1975	44.36474503773835
1976	44.37714459545071
1977	44.37272752880235
1978	44.36831257180501
1979	44.3462740580957
1980	44.22443895094442
1981	44.085706266133144
1982	44.05924344906541
1983	44.138248047137786
1984	44.27670130810366
1985	44.378850073374316
1986	44.43308783541671
1987	44.48000653924255
1988	44.51459484558892
1989	44.52947639695339
1990	44.51721303658045
1991	44.485134053359225
1992	44.51129145990208
1993	44.49891196164705
1994	44.390228100923444
1995	44.236437271278405
1996	44.021394055656714
1997	43.77430101080219
1998	43.498734252577655
1999	43.21758199179101
2000	42.90844545652323
2001	42.60328694141558
2002	42.383939000005604
2003	42.202968494413895
2004	42.003137342048504
2005	41.804099275704246
2006	41.60952283697151
2007	41.42539673463771
2008	41.26549378078099
2009	41.111918916379935
2010	40.95202015435231
2011	40.813048754770094
2012	40.71910983368206
2013	40.64735440332083
2014	40.56010237876034
2015	40.45640489191173
2016	40.33775076534249
2017	40.17111308944762
2018	39.96427477746588
2019	39.74623759626205
2020	39.50738677060469
2021	39.248969445130626
2022	38.952451736889316
2023	38.607657158954275