Year	% of total population
1960	7.46913729559382
1961	7.30452086403475
1962	7.15926421116499
1963	7.04880099221619
1964	6.97516146707309
1965	6.9457759394848
1966	7.02739591410101
1967	7.19001092896175
1968	7.35084441663147
1969	7.5187367928923
1970	7.62008334051152
1971	7.67519082056071
1972	7.7576908996573
1973	7.86209750218795
1974	7.98905103020082
1975	8.1243964171321
1976	8.25456586268537
1977	8.37137622148222
1978	8.49200731802845
1979	8.60868871152992
1980	8.65595698742101
1981	8.61807644426467
1982	8.53670464097633
1983	8.46597962959777
1984	8.4347926090985
1985	8.42839875951208
1986	8.43777753645072
1987	8.4564094121866
1988	8.5196367028104
1989	8.66633189369939
1990	8.8848736158073
1991	9.15828331475203
1992	9.49943480341704
1993	9.90210454936128
1994	10.306081758526
1995	10.662014041113
1996	10.960820973891
1997	11.2232631154268
1998	11.4634920951088
1999	11.6756500539709
2000	11.9176319266843
2001	12.2434012553802
2002	12.6475221474824
2003	13.1168621227732
2004	13.5882951003915
2005	14.0052153631435
2006	14.2995411004565
2007	14.33652193201
2008	14.085153781924
2009	13.6899530102139
2010	13.3985572989793
2011	13.3262700887729
2012	13.4306831432179
2013	13.6621876917002
2014	13.8496940439586
2015	13.950890607913
2016	14.0649570020498
2017	14.1778148943503
2018	14.2785019848502
2019	14.3932716852252
2020	14.501600143604
2021	14.5567432503632
2022	14.6085652772665
2023	14.7424604683873