Year	% of total population
1960	40.4966657057612
1961	41.8315304880697
1962	43.0154933671969
1963	44.0055167932857
1964	44.761761633638
1965	45.141768646615
1966	45.2013877812782
1967	45.1457115463419
1968	44.9766729416779
1969	44.7476644184153
1970	44.5325221679708
1971	44.3269426650671
1972	44.0884536711075
1973	43.7948850497195
1974	43.4295575714975
1975	42.9860128372347
1976	42.4909716281725
1977	41.9713843781256
1978	41.4840289042447
1979	41.1006055888116
1980	40.8155398750603
1981	40.6013488787279
1982	40.4488892493969
1983	40.3641288339275
1984	40.3412695013793
1985	40.3440691286093
1986	40.3585736600976
1987	40.3577391195864
1988	40.3029704855524
1989	40.2295225833564
1990	40.2011905331426
1991	40.1702884273257
1992	40.0826671573065
1993	39.9572048578646
1994	39.7781072742608
1995	39.5354458206325
1996	39.229182773354
1997	38.8288628824474
1998	38.3004789383585
1999	37.6392448343491
2000	36.874369234193
2001	36.0215913499146
2002	35.1251813521698
2003	34.2347887184327
2004	33.3687092081175
2005	32.5065818581219
2006	31.6458787798143
2007	30.8700495825353
2008	30.2261920822087
2009	29.696511717156
2010	29.2363201004871
2011	28.836105154761
2012	28.5408143042562
2013	28.4003665025922
2014	28.4136367865087
2015	28.5227759133108
2016	28.6743307982373
2017	28.8416271720228
2018	29.0881381624216
2019	29.4164411454935
2020	29.7700920460112
2021	30.070973508198
2022	30.2113376007802
2023	30.1955268469818