Year	% of total population
1960	55.4778072803238
1961	55.5014567883219
1962	55.5112029256513
1963	55.4482686715369
1964	55.2900677097933
1965	55.0311219822289
1966	54.6935547717125
1967	54.3249476465463
1968	53.9395106235827
1969	53.545327743666
1970	53.1332892142988
1971	52.7049928561219
1972	52.2662450014447
1973	51.8304606802897
1974	51.4070029710925
1975	50.9829413376882
1976	50.5576909654558
1977	50.1279709838604
1978	49.6967053329474
1979	49.2645412658977
1980	48.835709096341
1981	48.4334625339945
1982	48.0644514971802
1983	47.7204592459153
1984	47.4020173942635
1985	47.1199184808695
1986	46.8543346424264
1987	46.6313635369139
1988	46.4490128288076
1989	46.2856816798657
1990	46.1723561229839
1991	46.1096984992139
1992	46.0970074972091
1993	46.1327231670919
1994	46.2406733649363
1995	46.388870034966
1996	46.5792669958665
1997	46.8489082574832
1998	47.1818634269214
1999	47.5598830034517
2000	47.9750506483262
2001	48.4367374189521
2002	48.9300189808044
2003	49.4347509230242
2004	49.9475267112408
2005	50.5159652460273
2006	51.1472541059776
2007	51.7932836541405
2008	52.4322577166175
2009	53.0447972506895
2010	53.6122866904957
2011	54.0811564472843
2012	54.4675544529606
2013	54.8288445131304
2014	55.1763098188237
2015	55.5107955749899
2016	55.821782484305
2017	56.1245786642202
2018	56.4338933949216
2019	56.7598310073155
2020	57.0927069843214
2021	57.4388542789782
2022	57.8405281314022
2023	58.2798403184922