Year	% of total population
1960	54.7861532372056
1961	54.4177588585845
1962	54.035005013224
1963	53.6617489085541
1964	53.3697974243882
1965	53.1547617323882
1966	53.00922697482
1967	53.0785090114155
1968	53.3159237987142
1969	53.6503053787108
1970	54.1779417699855
1971	54.7471746062416
1972	55.2846237091745
1973	55.9502598881878
1974	56.7549029373087
1975	57.6675802263599
1976	58.6642466930288
1977	59.639810011558
1978	60.5612233854694
1979	61.3594467326013
1980	62.0345525462189
1981	62.6274617786035
1982	63.1515379552568
1983	63.7539725371019
1984	64.5196318220763
1985	65.3781443271166
1986	66.25549993078
1987	67.1091515478047
1988	67.8854299369447
1989	68.5806792389168
1990	69.1789412196456
1991	69.6461914929307
1992	70.0196229802767
1993	70.3311817788413
1994	70.6454875793134
1995	71.0390058206126
1996	71.4383767865065
1997	71.7358167143299
1998	71.9221734520449
1999	71.9748286578566
2000	71.8760990259356
2001	71.7451655473232
2002	71.662429828759
2003	71.6127403603619
2004	71.6060135035335
2005	71.6762986347393
2006	71.7980548205993
2007	71.9497585689569
2008	72.1586345017456
2009	72.3732902137871
2010	72.5539037292533
2011	72.8021398873731
2012	73.0635468276552
2013	73.2064071566282
2014	73.2521853471681
2015	73.2710940167726
2016	73.2664465457639
2017	73.0767911799195
2018	72.7870779787487
2019	72.4807941080881
2020	72.0045160651504
2021	71.4568795580502
2022	70.9372223548877
2023	70.3865440520991