Year	% of total population
1960	88.46662546797654
1961	88.18334931488587
1962	87.88196484663177
1963	87.56478584127059
1964	87.23382395198927
1965	86.89185825132574
1966	86.54950514445748
1967	86.1779842302861
1968	85.7943964651243
1969	85.39618425849764
1970	85.00299789525958
1971	84.58317853664931
1972	84.14963594498165
1973	83.7321325867625
1974	83.3149953991591
1975	83.32166241616463
1976	82.85590773523498
1977	82.38021662059693
1978	81.88824956397355
1979	81.42550387721785
1980	80.89735445589896
1981	80.43646289027254
1982	80.12755921424949
1983	79.78547133939617
1984	79.39984254617455
1985	78.98517541846472
1986	78.56486713685422
1987	78.14292608335185
1988	77.71934696925628
1989	77.31609403323702
1990	76.92574884514414
1991	76.57616437208279
1992	76.24784512864622
1993	75.91852440689622
1994	75.58297106904406
1995	75.2599769453021
1996	74.97787043328738
1997	74.6770563708582
1998	74.36485100556106
1999	74.05371895552811
2000	73.73275046777508
2001	73.36347861953733
2002	72.97597736288122
2003	72.58258395489376
2004	72.18458218937856
2005	71.77021424134574
2006	71.34110706034684
2007	70.93826638832239
2008	70.47161477464368
2009	70.01415134879795
2010	69.54637309232551
2011	69.10968533973008
2012	68.69195567590226
2013	68.28474995954026
2014	67.86672168689324
2015	67.39029304958889
2016	66.8925440070215
2017	66.38413965326417
2018	65.86962656347848
2019	65.3468358369054
2020	64.82279614089708
2021	64.29781441555875
2022	63.75663094333775
2023	63.19976697565715