Year	% of total population
1960	52.0454424802251
1961	51.8658919305223
1962	51.7386254607888
1963	51.6945647892871
1964	51.7454863077469
1965	51.8323088869554
1966	51.6498860880429
1967	51.198399709038
1968	50.7624683618414
1969	50.669791472476
1970	50.874443951146
1971	51.0591953532075
1972	51.2704151392885
1973	51.5990626753358
1974	52.1065411054419
1975	52.7235269880511
1976	53.3348256107975
1977	53.9115262925025
1978	54.5060119397965
1979	55.129234629862
1980	55.7302243745221
1981	56.2957575757576
1982	56.7739015831176
1983	57.117347535538
1984	57.3032332121676
1985	57.3154644120645
1986	57.1858611900507
1987	56.9646584508049
1988	56.6901506696429
1989	56.4031510216309
1990	56.1495404234361
1991	55.8587427557041
1992	55.5233211170517
1993	55.24607263647
1994	55.0963071862853
1995	55.0499812838655
1996	55.0955856165831
1997	55.2619249541861
1998	55.5064128338257
1999	55.8254762913998
2000	56.2248453428351
2001	56.567915962488
2002	56.919139172831
2003	57.3707735295833
2004	57.7906759228467
2005	58.1165192942423
2006	58.5099367524954
2007	58.996254828526
2008	59.4199065078968
2009	59.8133883042205
2010	60.2157507292004
2011	60.5280762352042
2012	60.7247967388626
2013	60.8797910176417
2014	60.9666478236292
2015	60.9713255045777
2016	60.886569405888
2017	60.714923668086
2018	60.4818360645011
2019	60.2586907703576
2020	60.1228813056732
2021	60.0862082343995
2022	60.1113299779397
2023	60.1913642661873