Year	% of total population
1960	41.6271864684651
1961	41.6953029189524
1962	41.7691668785528
1963	41.8853766782279
1964	42.0593887198501
1965	42.3141327571861
1966	42.6201405335114
1967	42.9187974461615
1968	43.2083750435887
1969	43.4894284281289
1970	43.7592715650739
1971	44.0151410825322
1972	44.2605080602237
1973	44.4977192608626
1974	44.7285117535112
1975	44.9499012369929
1976	45.1597601419849
1977	45.3646939816162
1978	45.5686425294341
1979	45.7722670594067
1980	45.9728550490178
1981	46.1650423860811
1982	46.3499581717949
1983	46.507146848665
1984	46.6609847929259
1985	46.8224818131924
1986	46.970919060034
1987	47.0996849872873
1988	47.2213523826043
1989	47.3372457297943
1990	47.474496007217
1991	47.6428472447194
1992	47.8215139159388
1993	48.001529589196
1994	48.2181114886561
1995	48.466018942059
1996	48.7306518705022
1997	49.0016341163514
1998	49.2689718539834
1999	49.5154857037621
2000	49.7182582034242
2001	49.8659492984086
2002	49.9436209267254
2003	49.9614310008377
2004	49.9220361703005
2005	49.6154806542516
2006	49.2306747206613
2007	49.6953911336511
2008	49.8904632307041
2009	49.3195082801243
2010	48.9689982912891
2011	48.2643602343821
2012	47.4324904337073
2013	46.867620814212
2014	46.2315378217709
2015	45.7921058791564
2016	45.5209667513396
2017	45.1186155199624
2018	44.7084445995593
2019	44.2913519225043
2020	43.8079121491391
2021	43.424542703341
2022	43.1306335411773
2023	42.8451173150362