Year	% of total population
1960	3.151747620710735
1961	3.136486268515094
1962	3.1268652024041286
1963	3.1202559638825704
1964	3.117548038880506
1965	3.117985457277276
1966	3.1216114548339826
1967	3.128741521772433
1968	3.1381280829176803
1969	3.14778224060782
1970	3.1562186073413585
1971	3.149479158436774
1972	3.143409428163626
1973	3.1530334970574363
1974	3.1636453677142553
1975	3.1732395244783924
1976	3.187538882660128
1977	3.206043866967007
1978	3.2224008822054215
1979	3.236611184249875
1980	3.2468149604024505
1981	3.25300650233297
1982	3.2567683815780923
1983	3.2566494066587865
1984	3.256342001740008
1985	3.2595324532363756
1986	3.2643645042629488
1987	3.2723304642167226
1988	3.277198166892568
1989	3.2761324492193156
1990	3.2757156254668414
1991	3.2772326946696517
1992	3.27642733944813
1993	3.2710969299140578
1994	3.2637909186917513
1995	3.2584955113858753
1996	3.2566027639397896
1997	3.2587633455179605
1998	3.2666163839417974
1999	3.2801686108135755
2000	3.2947753145935277
2001	3.306636212966987
2002	3.317211099530981
2003	3.3266974910768345
2004	3.335114327207535
2005	3.3425601410466936
2006	3.3497031025441895
2007	3.356272151928448
2008	3.363018228039046
2009	3.372787059670425
2010	3.3867852769879816
2011	3.4050942739022023
2012	3.4281672077127676
2013	3.4525391326983788
2014	3.4782670293132463
2015	3.5115944345144237
2016	3.551950535751242
2017	3.5990539629403524
2018	3.654395900535763
2019	3.7145391675503454
2020	3.765365645261153
2021	3.804918650534954
2022	3.8467567501685855
2023	3.8983482773172455