Year	% of total population
1960	40.12086700629031
1961	40.20767504705767
1962	40.36076312589978
1963	40.66408526172139
1964	40.8982570556713
1965	40.9812218868033
1966	41.00159192359703
1967	40.928675645823446
1968	40.83484339035591
1969	40.75700032266995
1970	40.63975188821256
1971	40.52537808451062
1972	40.370758772651115
1973	40.207091103201925
1974	40.11006063747334
1975	40.022319802455876
1976	39.92167119004291
1977	39.67760154097994
1978	39.20888852157023
1979	38.73675722762284
1980	38.34835643535098
1981	38.001655436291855
1982	37.727215996637305
1983	37.42982045489834
1984	37.09090154726074
1985	36.77444330709818
1986	36.487093315485595
1987	36.2496062467081
1988	36.02307019053642
1989	35.81391834774937
1990	35.64925055098602
1991	35.473960194901075
1992	35.277089606654734
1993	35.07363192542828
1994	34.81825676854852
1995	34.50962889745125
1996	34.162914572126354
1997	33.761695361131366
1998	33.34120906828657
1999	32.92440278743764
2000	32.49716954754586
2001	32.05052415546312
2002	31.58485105077614
2003	31.133210215697144
2004	30.698078005469128
2005	30.265656246163818
2006	29.889251107863412
2007	29.595249354950237
2008	29.352426523320457
2009	29.14305652442277
2010	28.951118350245654
2011	28.7766046198167
2012	28.632838421144896
2013	28.508234308259688
2014	28.384516696935172
2015	28.245873238934884
2016	28.095923222718664
2017	27.947579505003656
2018	27.78027269227786
2019	27.584124690725645
2020	27.36313020189113
2021	27.131013181486693
2022	26.89847499963802
2023	26.624087415068868