Year	% of total population
1960	4.17453504019123
1961	4.23261693628618
1962	4.28212824933774
1963	4.34135322470319
1964	4.41109135286813
1965	4.48412998866135
1966	4.52995909430906
1967	4.55093176039797
1968	4.5737577988149
1969	4.60051108821816
1970	4.63118500638277
1971	4.67032461933776
1972	4.71326994403886
1973	4.75121032762063
1974	4.78496617127366
1975	4.81206647560841
1976	4.8030039853093
1977	4.76536000782493
1978	4.73613979843
1979	4.71848129399272
1980	4.69432797503617
1981	4.66427846041196
1982	4.64037305252138
1983	4.62100399274446
1984	4.61006273462917
1985	4.60779962678091
1986	4.61517060443283
1987	4.63196085123844
1988	4.65636644349814
1989	4.68794396437693
1990	4.72718556696211
1991	4.77535345780455
1992	4.83080745373387
1993	4.88956228852802
1994	4.9497999879781
1995	5.01305701220121
1996	5.07866847173936
1997	5.14593824486035
1998	5.21616968113654
1999	5.28889763912245
2000	5.36672460190044
2001	5.4489872632428
2002	5.53857111439408
2003	5.63613975477141
2004	5.73549634635648
2005	5.83588845274948
2006	5.93732378660047
2007	6.04209995196602
2008	6.14907023064425
2009	6.25314236578192
2010	6.36012440408608
2011	6.47765923016485
2012	6.60748036340609
2013	6.75568724152148
2014	6.91834150325045
2015	7.08622636552487
2016	7.23926479109888
2017	7.35972928387174
2018	7.61392036567582
2019	7.95083026834964
2020	8.18209546745335
2021	8.37874278003289
2022	8.6356688907301
2023	8.93573892733236