Year	% of total population
1960	53.91448249613799
1961	53.829926519583914
1962	53.72845683382344
1963	53.59438196197477
1964	53.425120823504805
1965	53.263947956094626
1966	53.12512395250136
1967	52.99138803504416
1968	52.86336256431933
1969	52.73700507854261
1970	52.60882643956196
1971	52.479296782903695
1972	52.351025785313176
1973	52.2426708863111
1974	52.159226938504055
1975	52.079633596241365
1976	51.9936057615792
1977	51.919898025189525
1978	51.86331241285034
1979	51.8015362514203
1980	51.74622055041741
1981	51.68275262328675
1982	51.61176367761914
1983	51.55824594664462
1984	51.51514389418552
1985	51.480004096572614
1986	51.45493957572743
1987	51.42958329890847
1988	51.42054096023882
1989	51.43073566356191
1990	51.44458662449778
1991	51.46786441532729
1992	51.50051708533898
1993	51.53985601240307
1994	51.65215836139771
1995	51.79648587869903
1996	51.88416227178777
1997	51.97785748040881
1998	52.12505584448471
1999	52.28988617431743
2000	52.4383977840698
2001	52.57764907987172
2002	52.7097624606453
2003	52.83625116169112
2004	52.95380163761475
2005	53.05071728290888
2006	53.129539263560346
2007	53.20030906745228
2008	53.262249096241575
2009	53.31951704052237
2010	53.3796385657797
2011	53.441857540232654
2012	53.50039685334068
2013	53.57061532395442
2014	53.67218185281695
2015	53.803374429176
2016	53.935223849992745
2017	54.07680889801681
2018	54.246120107696534
2019	54.43230008236344
2020	54.64621441489979
2021	54.88368406488423
2022	55.133384842048635
2023	55.398218457123754