Year	% of total population
1960	5.28309956892606
1961	5.15697090930443
1962	5.0449454154632
1963	4.95792893987564
1964	4.90702213293832
1965	4.89172269215817
1966	4.91179870486163
1967	4.96560093340768
1968	5.04080605214102
1969	5.12204403122198
1970	5.19993612877691
1971	5.27809514656384
1972	5.35554757902337
1973	5.43097217983337
1974	5.51633947125447
1975	5.61070161983001
1976	5.70973042234654
1977	5.81339984681236
1978	5.90902745589066
1979	5.96636503115284
1980	5.96799391337317
1981	5.92273975194534
1982	5.8379120550596
1983	5.7278580375637
1984	5.61920099564356
1985	5.53333937356563
1986	5.44089627259242
1987	5.33965905380798
1988	5.28048597159323
1989	5.31847290562986
1990	5.4334721306291
1991	5.57909323592992
1992	5.75460014855002
1993	5.94879873298092
1994	6.13823210885243
1995	6.28124405968873
1996	6.38450321081859
1997	6.45590482155939
1998	6.48224442734866
1999	6.50213633686642
2000	6.56941068678141
2001	6.72116579201291
2002	6.94040724917323
2003	7.17600808784649
2004	7.38045818744424
2005	7.51916399385204
2006	7.56481743879129
2007	7.48204337018139
2008	7.28371105960621
2009	7.02582069168852
2010	6.796220903423
2011	6.66867181532314
2012	6.65218975452913
2013	6.72071973441996
2014	6.83928293049842
2015	6.99049056009678
2016	7.1496072486998
2017	7.31287797954159
2018	7.48969999566838
2019	7.67978397225846
2020	7.84405363269757
2021	7.94971084650974
2022	8.04318053852774
2023	8.19124813038404