Year	% of total population
1960	38.3444535976737
1961	38.668681880109
1962	39.1463895694058
1963	39.788914198937
1964	40.6525024446617
1965	41.9870798685991
1966	43.5225939979303
1967	44.5900619738333
1968	45.0749252470939
1969	45.3177663106658
1970	45.5167657261091
1971	45.640454566918
1972	45.6502570797119
1973	45.5320883355565
1974	45.4364543861354
1975	45.5238740690021
1976	45.6734534727991
1977	45.707434210743
1978	45.7731132831277
1979	45.8902486184399
1980	45.9143107531544
1981	45.8532502667052
1982	45.6986921457119
1983	45.4436975680204
1984	45.220675965898
1985	45.344790908876
1986	45.7691615392611
1987	46.1844450101833
1988	46.4737639704489
1989	46.6476550562777
1990	46.8080566508266
1991	46.9444324790006
1992	46.964168849878
1993	46.8383598642237
1994	46.5287607900048
1995	45.9406757342917
1996	45.078768882075
1997	44.0492120130836
1998	42.868778214437
1999	41.5242475126838
2000	40.0578393771471
2001	38.5466207950272
2002	37.0431447550067
2003	35.5576826349018
2004	34.0796896746317
2005	32.6236572448521
2006	31.0766045219394
2007	29.4558109778978
2008	27.966385955955
2009	26.7036159490255
2010	25.6776957445838
2011	24.8716418229331
2012	24.2682358830519
2013	23.8227675630353
2014	23.3824369267981
2015	22.9426376663866
2016	22.5901893770535
2017	22.2989276990615
2018	22.0526259907955
2019	21.8722993490688
2020	21.7894090249943
2021	21.7181649511226
2022	21.6792322069849
2023	21.6710826712525