Year	% of total population
1960	3.01911447182813
1961	3.0085492677141272
1962	2.9969955507640242
1963	2.9847573308569526
1964	2.974115526491263
1965	2.965511210982345
1966	2.958220827275637
1967	2.9531867187250436
1968	2.950634366972878
1969	2.9491651040742237
1970	2.9476140555455452
1971	2.947068829368803
1972	2.946720673365275
1973	2.9470408314702503
1974	2.948423089385135
1975	2.9494744290283803
1976	2.952164820481917
1977	2.954799745445827
1978	2.9563467447076897
1979	2.958389532967627
1980	2.9612364774397273
1981	2.965188214590867
1982	2.9674568379309205
1983	2.9646898812630065
1984	2.960712122061603
1985	2.959964467828047
1986	2.962306533976561
1987	2.972160472223312
1988	2.976736753489777
1989	2.973710258739056
1990	2.9744390849170386
1991	2.976052423169407
1992	2.972219369716123
1993	2.963701719586832
1994	2.955661324134954
1995	2.9469240113429094
1996	2.939085854098097
1997	2.936532875056967
1998	2.9380931912066157
1999	2.94363578176188
2000	2.9556951399055094
2001	2.969857193235605
2002	2.9815632240625063
2003	2.9920876350708316
2004	3.0026115651530123
2005	3.0116316191429573
2006	3.018354885125132
2007	3.0229203286384942
2008	3.0259116159737935
2009	3.030021544732969
2010	3.0376224987556197
2011	3.0490615476125207
2012	3.062365014313742
2013	3.0745145667301292
2014	3.0851628667855806
2015	3.0992545400482734
2016	3.10999793623687
2017	3.117138516902542
2018	3.1309141567125747
2019	3.150794485221199
2020	3.165418230344241
2021	3.1671455252786394
2022	3.1705343764740026
2023	3.1882501423055123