Year	% of total population
1960	4.775408805426205
1961	5.031362972390644
1962	5.304015679006242
1963	5.594728714804091
1964	5.810647021147638
1965	5.983032940544427
1966	6.162790588278829
1967	6.354004777237683
1968	6.554631084361979
1969	6.760037343119805
1970	6.970758151484604
1971	7.192092898199422
1972	7.466678232003757
1973	7.74465306408411
1974	8.0250294929042
1975	8.304984946058088
1976	8.5893995227064
1977	8.87530653222336
1978	9.167239468908873
1979	9.470501661568761
1980	9.785372431104477
1981	10.118459383521365
1982	10.477982348363863
1983	10.896892470429009
1984	11.140835525258549
1985	11.364354220818216
1986	11.609980329048053
1987	11.870721232283058
1988	12.14177850593173
1989	12.418992120077895
1990	12.706561371371098
1991	12.963063247143685
1992	13.140571247073266
1993	13.252818656670637
1994	13.367154856757912
1995	13.488009394051684
1996	13.618006307949509
1997	13.751849539201109
1998	13.892140533395656
1999	14.033762236721135
2000	14.172755240159574
2001	14.30863322616108
2002	14.446009309892178
2003	14.587464715335624
2004	14.735014951499906
2005	14.887331848148664
2006	15.024070849308671
2007	15.105289337747301
2008	15.1883373016585
2009	15.27156246467417
2010	15.355633988047417
2011	15.439474671626707
2012	15.52916611387436
2013	15.628464439744938
2014	15.742501341405507
2015	15.873679932396279
2016	16.01398392387058
2017	16.154864712461332
2018	16.304647190616322
2019	16.471268623026784
2020	16.651541836274493
2021	16.851847258697642
2022	17.070707011545263
2023	17.30194127528156