Year	% of total population
1960	41.4153545830148
1961	41.9234880647884
1962	42.3874290947468
1963	42.8638377103853
1964	43.4290373010136
1965	43.9743786053341
1966	44.4009153085209
1967	44.7887122576797
1968	45.1258808653194
1969	45.3526761745652
1970	45.4523596349936
1971	45.3501284499297
1972	45.0630945873203
1973	44.6610698139817
1974	44.1781384636379
1975	43.5854233500774
1976	42.9308561209233
1977	42.3556024996514
1978	41.8118611766006
1979	41.2281667653091
1980	40.6245990486742
1981	40.0231324108984
1982	39.4283112521061
1983	38.9034260629623
1984	38.456615456371
1985	38.0478004214605
1986	37.6622229821955
1987	37.2889829619753
1988	36.9382312042332
1989	36.6119202061208
1990	36.2830182487298
1991	35.9886967233268
1992	35.8328808243249
1993	35.7579434760083
1994	35.6514811820312
1995	35.4850536309483
1996	35.2108102431448
1997	34.8524014811223
1998	34.4548385506762
1999	33.987155806762
2000	33.4070641469563
2001	32.754616382117
2002	32.094971521772
2003	31.4418336742704
2004	30.8083878357725
2005	30.2134625492601
2006	29.6230137595433
2007	28.9430594534842
2008	28.1852035850471
2009	27.4110743767956
2010	26.6078153667879
2011	25.8478036406711
2012	25.1484246962752
2013	24.4485200652404
2014	23.7916419319077
2015	23.2731406903948
2016	22.8462385585591
2017	22.3904709323949
2018	21.8973375038009
2019	21.3741122684737
2020	20.8331833860409
2021	20.2996115740226
2022	19.8397666812738
2023	19.427041204639