Year	% of total population
1960	55.688039368783
1961	56.1302659897351
1962	56.1630326356506
1963	55.5921861508903
1964	55.0734487297409
1965	54.8752002477808
1966	54.8214382689133
1967	55.0106189303813
1968	55.1977105517616
1969	55.2602267676385
1970	55.3942882878644
1971	55.4975272853154
1972	55.7161489921561
1973	55.9186419658875
1974	55.845916057112
1975	55.7082950253922
1976	55.6288571101552
1977	56.0428131542696
1978	57.2182895788484
1979	58.4600148427918
1980	59.4849900343196
1981	60.4136131359719
1982	61.1320409741922
1983	61.9669267750532
1984	62.9691413340706
1985	63.8655723149259
1986	64.6023333648909
1987	65.1102417234623
1988	65.5126244266905
1989	65.7867237059828
1990	65.8196317084304
1991	65.8488683599783
1992	65.9616118769882
1993	66.0524499004973
1994	66.2207967714048
1995	66.4803471751879
1996	66.8273386146998
1997	67.303627156526
1998	67.7351059704836
1999	68.1052273017886
2000	68.5454724435051
2001	69.0954194622885
2002	69.7927370823726
2003	70.5008674333562
2004	71.1926674886903
2005	71.9258933636482
2006	72.4596939797726
2007	72.720138581345
2008	72.8735375169281
2009	72.9373532734247
2010	72.9288795965648
2011	72.8468648083454
2012	72.6444674048894
2013	72.35233191749
2014	72.0059584388966
2015	71.62337796961
2016	71.1957118939645
2017	70.6489642972226
2018	70.1293960945994
2019	69.7163732528515
2020	69.3766175836562
2021	69.182174514413
2022	69.0310256609004
2023	68.9454422031481