Year	% of total population
1960	42.52799561364807
1961	42.665221363300944
1962	42.81154235813115
1963	42.988899483492695
1964	43.18608754942869
1965	43.35695410205809
1966	43.49967622432389
1967	43.63384327529284
1968	43.75858781666079
1969	43.88336908146446
1970	44.01423593029621
1971	44.1773810062304
1972	44.34435029812846
1973	44.46275708376483
1974	44.542745079221945
1975	44.592626852438805
1976	44.63365388231158
1977	44.672631940168756
1978	44.70278120961376
1979	44.736547495049535
1980	44.794388228031266
1981	44.854521955205875
1982	44.88072542665045
1983	44.87673769203939
1984	44.86279205041268
1985	44.84578188181862
1986	44.81207935536364
1987	44.76432772343048
1988	44.717807242603286
1989	44.678399779441776
1990	44.63230143192754
1991	44.55769184918251
1992	44.462294280874396
1993	44.38138574533871
1994	44.25076277448732
1995	44.09343057615954
1996	43.98904675386934
1997	43.88015932859123
1998	43.70060399768762
1999	43.48680298363879
2000	43.286415472803846
2001	43.095359013886544
2002	42.92621463177177
2003	42.764671921877074
2004	42.59335668431119
2005	42.41508367303366
2006	42.25280250684499
2007	42.12212793221104
2008	41.98628018613014
2009	41.819151570395256
2010	41.63122004174257
2011	41.41800127201646
2012	41.19708253513321
2013	40.978781068001574
2014	40.75195994629435
2015	40.52542775649598
2016	40.28528642966962
2017	40.027522791433405
2018	39.769196808040164
2019	39.51061122354536
2020	39.24572705932456
2021	38.987779414606656
2022	38.744024436904674
2023	38.500545826115804