Year	% of total population
1960	5.815833510724915
1961	5.863322512474583
1962	5.901180252299228
1963	5.947129847634665
1964	6.022009782764595
1965	6.144884185237877
1966	6.268902236509315
1967	6.375283193880367
1968	6.502180268800874
1969	6.623818110216067
1970	6.7198780731995695
1971	6.818736419634822
1972	6.930913931493747
1973	7.029230877238469
1974	7.136191757189811
1975	7.245724217452686
1976	7.349391570196942
1977	7.458633623732934
1978	7.5510421138257815
1979	7.59299917682507
1980	7.559262758855175
1981	7.449856327587687
1982	7.299893471801715
1983	7.170647024223803
1984	7.083375428881185
1985	7.0103817281416
1986	6.971065393501099
1987	6.981135896663907
1988	7.034269328731062
1989	7.133448204279973
1990	7.257873982120445
1991	7.404560855287612
1992	7.572308673570416
1993	7.757929467942887
1994	7.932687426890807
1995	8.077438317268102
1996	8.185682199548609
1997	8.256524178340642
1998	8.301734332164553
1999	8.339365765100316
2000	8.414988841715221
2001	8.550120933206216
2002	8.743671791436102
2003	8.948252830114447
2004	9.116008944100553
2005	9.232723193075463
2006	9.296259017163697
2007	9.291830842567304
2008	9.193117446195775
2009	9.061531643011152
2010	8.926295188168298
2011	8.843647141359979
2012	8.845058708824004
2013	8.894321524868754
2014	8.995445108685463
2015	9.134393057959599
2016	9.277422506043882
2017	9.4181956407302
2018	9.605921787982444
2019	9.832123326072486
2020	10.004256772031104
2021	10.128158667625453
2022	10.29371688742542
2023	10.646463004017981