Year	% of total population
1960	55.0591047194653
1961	54.8384385099807
1962	54.5744273799602
1963	54.3581156639758
1964	54.1789120840932
1965	53.9662665065069
1966	53.7384245276406
1967	53.5388548121658
1968	53.3677716406581
1969	53.2222502030469
1970	53.1040960208168
1971	53.0148476902755
1972	52.9291771971502
1973	52.8364878666953
1974	52.7598483298166
1975	52.7019810522385
1976	52.637884991038
1977	52.5263482919745
1978	52.357124519749
1979	52.1541594220767
1980	51.9894424080071
1981	51.9202702092622
1982	51.9239441137903
1983	51.9749241326058
1984	52.0302347704528
1985	52.0967263218574
1986	52.1800381524202
1987	52.2570606311624
1988	52.3871956687978
1989	52.563689274217
1990	52.7404960146266
1991	52.9109257527122
1992	53.052514056808
1993	53.1514061747526
1994	53.2161692379406
1995	53.2686377472534
1996	53.3023444960707
1997	53.2339905932335
1998	53.0897697831222
1999	52.9501666393325
2000	52.8164003438556
2001	52.6950188813925
2002	52.5917806876789
2003	52.4916785691921
2004	52.4032364411212
2005	52.3251303138182
2006	52.2461498990945
2007	52.1817660128776
2008	52.0978177246504
2009	51.9859072603923
2010	51.9042007221808
2011	51.8885544999392
2012	51.9477277714024
2013	52.0641812634548
2014	52.2371744723321
2015	52.4581388640207
2016	52.7215169935327
2017	52.9705831486167
2018	53.1648555441119
2019	53.3432148187942
2020	53.5364024247809
2021	53.7276765784608
2022	53.9105492244298
2023	54.1374601097183