Year	% of total population
1960	43.568508817236
1961	43.5539910580877
1962	43.530801077004
1963	43.48200733576
1964	43.3825505706977
1965	43.205406788104
1966	42.9622246575691
1967	42.652098346624
1968	42.2514943946959
1969	41.7087658203919
1970	40.9725343705901
1971	40.2023736914201
1972	39.5616718540696
1973	38.9566743801041
1974	38.2788749873232
1975	37.5270987090341
1976	36.7554528629872
1977	36.0030692641393
1978	35.3369464210642
1979	34.8378756092616
1980	34.5346286569514
1981	34.4254304190665
1982	34.4728382045388
1983	34.6045860378349
1984	34.7600373750683
1985	34.9013636187468
1986	34.9623202489046
1987	34.8800024686506
1988	34.6771297241838
1989	34.3976188704043
1990	34.0466799340081
1991	33.6075406825134
1992	33.0791395112571
1993	32.4417646722423
1994	31.6793882864791
1995	30.8056830363765
1996	29.831685490097
1997	28.7987185279002
1998	27.7573063102401
1999	26.7611359675976
2000	25.7994186319272
2001	24.8634173709646
2002	24.0054057929505
2003	23.2629356328701
2004	22.6408482392937
2005	22.1293128099948
2006	21.7220396689857
2007	21.3980036256359
2008	21.1526400907523
2009	20.9613821384808
2010	20.8189628276617
2011	20.729848875368
2012	20.6661323085216
2013	20.6068869971775
2014	20.5290898424925
2015	20.4286262653864
2016	20.3108288508466
2017	20.1700992893987
2018	19.8688915929924
2019	19.6419301887227
2020	19.5245585572412
2021	19.2993800072493
2022	19.0458213330834
2023	18.7613237546557