Year	% of total population
1960	3.2944704131754015
1961	3.2721266188360176
1962	3.2555285814200396
1963	3.2425937733656474
1964	3.2333510873026845
1965	3.226871850534858
1966	3.2235487297945893
1967	3.223197711031057
1968	3.2250805172914334
1969	3.2278937091288524
1970	3.2300947076316042
1971	3.2209088753682904
1972	3.2119923594785065
1973	3.2147839316594498
1974	3.2185564713758055
1975	3.2221282017427217
1976	3.2298272453820087
1977	3.2413078431987095
1978	3.252130015675261
1979	3.2612780564246413
1980	3.2644572900762983
1981	3.2635324809409028
1982	3.262157708303481
1983	3.258812280553834
1984	3.2565280268179797
1985	3.2573004917084325
1986	3.2592238572821
1987	3.263220443432471
1988	3.265459949933196
1989	3.264663026133353
1990	3.265105017336148
1991	3.2676096113760673
1992	3.2697745778888456
1993	3.2694599020130592
1994	3.2670679406796297
1995	3.2647258725697927
1996	3.2638205465719685
1997	3.265314367763257
1998	3.270427032708225
1999	3.279667988676018
2000	3.2900566429792732
2001	3.29882682139576
2002	3.307532766868581
2003	3.3161697477209335
2004	3.3240533087128035
2005	3.3311430119233325
2006	3.3381830529325027
2007	3.3449660502539187
2008	3.3519735177561567
2009	3.3610209099919426
2010	3.3737152025852297
2011	3.3903989430780177
2012	3.4105037693561737
2013	3.4308201275201564
2014	3.4512197945925474
2015	3.4780619667438684
2016	3.512187457055703
2017	3.552985327734506
2018	3.6015034865769526
2019	3.654635779815094
2020	3.6988809906486284
2021	3.7318818280758403
2022	3.769046967593636
2023	3.8189615562286763