Year	% of total population
1960	64.9551548315735
1961	64.8807016497233
1962	64.9369916427937
1963	65.1371994224018
1964	65.4458037633407
1965	65.8306835421585
1966	66.3110463433025
1967	66.7922101907919
1968	67.1100094682133
1969	67.2669964416857
1970	67.3469362145812
1971	67.3643110841524
1972	67.2151779524746
1973	66.8608356427671
1974	66.2721660794822
1975	65.5028082277044
1976	64.6280126591435
1977	63.862836243344
1978	63.3445363963584
1979	62.9107322788608
1980	62.5775486516554
1981	62.3969191999603
1982	62.906530944819
1983	64.0846055229474
1984	64.9632560142233
1985	65.409580746823
1986	65.6244153246675
1987	65.6710974523819
1988	65.6818041617726
1989	65.7459249293506
1990	65.9533375774657
1991	66.2729368403806
1992	66.6155350543747
1993	66.9051564727501
1994	67.1585823144275
1995	67.4036998137942
1996	67.6227291635688
1997	67.7435890878836
1998	67.7818192680717
1999	67.8691066283271
2000	68.0294184139222
2001	68.2546694382269
2002	68.5468726302942
2003	68.8371175514354
2004	69.0884858489027
2005	69.2520909384619
2006	69.2611837789809
2007	69.1704392016479
2008	69.0137904061015
2009	68.7748719628025
2010	68.519382464239
2011	68.3211537325018
2012	68.1827856399312
2013	68.0556085735931
2014	67.8141030916162
2015	67.450548648983
2016	67.0396866927773
2017	66.5751300342208
2018	66.0999129739948
2019	65.6652220158858
2020	65.2959873523551
2021	65.0495794823826
2022	65.4390132002127
2023	65.7009200107054