Year	% of total population
1960	38.8959636329876
1961	39.0229446711528
1962	39.1751804617052
1963	39.3656242697268
1964	39.6554292870936
1965	39.8712742589609
1966	39.93658055852
1967	40.0004760997905
1968	40.0644230506821
1969	40.1400465044523
1970	40.2426691714187
1971	40.3789988429736
1972	40.5444429501589
1973	40.7308815989896
1974	40.9334253545853
1975	41.1481742992679
1976	41.3728275387618
1977	41.6060037523452
1978	41.8415080690108
1979	42.0724212053593
1980	42.2824358684179
1981	42.4598025783105
1982	42.6139512368801
1983	42.7514267529477
1984	42.8687111428931
1985	42.9619873669048
1986	43.0366418755224
1987	43.1072912296543
1988	43.1873538241187
1989	43.294383112711
1990	43.4109343909318
1991	43.5272682118667
1992	43.663237070956
1993	43.7954058966683
1994	43.9187663313372
1995	44.0148402317139
1996	44.0946254159527
1997	44.4133990062612
1998	44.736344931433
1999	44.8673420594779
2000	45.0686982448173
2001	45.4586389764185
2002	45.6795424975164
2003	45.58089941417
2004	45.4968726282745
2005	45.4600596086624
2006	45.3760493000201
2007	45.1885374603747
2008	44.9598994251919
2009	44.7377506941948
2010	44.523881098004
2011	44.2883838387676
2012	44.0337670219893
2013	43.7958632093008
2014	43.5649189995681
2015	43.3273838801889
2016	43.0989059159826
2017	42.8780302837517
2018	42.6453706449799
2019	42.3848004803092
2020	42.1093584492871
2021	41.8334859849012
2022	41.5416772536904
2023	41.2114431710204