Year	% of total population
1960	40.8899006857948
1961	42.5386699479412
1962	43.8117596505146
1963	44.6933688974878
1964	45.2916800982179
1965	45.6442800266484
1966	45.8211161104736
1967	45.840418223575
1968	45.686599931732
1969	45.3769893630193
1970	44.9153017233832
1971	44.3068007352224
1972	43.5537597702734
1973	42.6650771111866
1974	41.6709620559313
1975	40.5981928308168
1976	39.2554166373271
1977	37.7229875951538
1978	36.2931487689083
1979	35.2555557364117
1980	34.6063435567223
1981	34.0683325392073
1982	33.7162707639198
1983	33.4768754536377
1984	33.3585157168691
1985	33.3725406826737
1986	33.4743423449413
1987	33.6710229037172
1988	33.8956867857451
1989	34.2453596125502
1990	34.5408003084613
1991	34.6464711318928
1992	34.6946844428442
1993	34.6685775790955
1994	34.4932825927579
1995	34.1720082693968
1996	33.7478455898443
1997	33.2280070596957
1998	32.6093503055647
1999	31.8667789017262
2000	30.9937307829946
2001	30.0291486753901
2002	29.0372267405881
2003	28.0641015588926
2004	27.146581108076
2005	26.3062013150865
2006	25.5738399689115
2007	24.9799598148813
2008	24.5116168368354
2009	24.1497350549825
2010	23.9057820806678
2011	23.8098466457125
2012	23.8624834169269
2013	24.0154575206549
2014	24.2115061871268
2015	24.4110496498193
2016	24.5751308507968
2017	24.6239785725498
2018	24.5468674949371
2019	24.4136548590589
2020	24.2241066583594
2021	23.9249531076917
2022	23.4802580093558
2023	22.9217889410781