Year	% of total population
1960	41.3043668122271
1961	41.4923970186997
1962	41.6594750801631
1963	41.7643311381602
1964	41.8613029553012
1965	41.9847565395688
1966	42.1798332711046
1967	42.4881634923545
1968	42.8432418384399
1969	43.0702970554949
1970	42.8075376056853
1971	42.2415545898408
1972	41.7530255336806
1973	41.2640845616156
1974	40.6663919318995
1975	39.8895884209014
1976	38.9706738607251
1977	37.9913410454868
1978	36.9919842988064
1979	36.017153846855
1980	35.1024010904906
1981	34.3880713560322
1982	33.8615234530626
1983	33.4011733576797
1984	33.0850949138768
1985	32.8822656392949
1986	32.6737864503486
1987	32.4443114334671
1988	32.21636273932
1989	32.0231268303248
1990	31.7935635937771
1991	31.5559258487815
1992	31.4587415439449
1993	31.4821915954255
1994	31.4515648995821
1995	31.3067093078377
1996	31.105080632599
1997	30.8817247288185
1998	30.6442970469058
1999	30.3239595155985
2000	29.8927123139311
2001	29.4418522810701
2002	29.0625505236496
2003	28.7257692608803
2004	28.3742288819681
2005	28.0245483088176
2006	27.6953024758659
2007	27.3597052002354
2008	27.0441985143125
2009	26.8087915849876
2010	26.3984440300907
2011	25.7671649689112
2012	25.1573701581685
2013	24.5123816932452
2014	23.8730658826976
2015	23.2744033257151
2016	22.645788323297
2017	22.0050373414866
2018	21.3702689555904
2019	20.7489921074163
2020	20.1664815368359
2021	19.6225596369747
2022	19.062695129566
2023	18.4892523087027