Year	% of total population
1960	53.0879966222768
1961	52.5467278936333
1962	52.3399625844436
1963	52.3686877168775
1964	52.5897339831786
1965	52.9989503673714
1966	53.6051679055362
1967	54.3673288356943
1968	55.2708615743751
1969	56.3681817923988
1970	57.5203926801936
1971	58.635144806527
1972	59.7367192649532
1973	60.8076922544795
1974	61.9094149874973
1975	63.0803274466107
1976	64.1810015444731
1977	65.196957811956
1978	66.2043546315819
1979	67.164448405986
1980	68.0620344903569
1981	68.8223560465575
1982	69.4108292893441
1983	69.854486147507
1984	70.2082842342573
1985	70.5929963743411
1986	71.0670550203711
1987	71.5640672509358
1988	72.0482422520503
1989	72.5138579421111
1990	72.829509805576
1991	72.9144849420948
1992	72.9647134916925
1993	73.1165482100133
1994	73.3281451957308
1995	73.4626080208811
1996	73.4696504082461
1997	73.5388926832985
1998	73.8023830323236
1999	74.2547645816576
2000	74.6001982187449
2001	74.5731695111114
2002	74.4766081353306
2003	74.621721230069
2004	75.0373940248944
2005	75.5701252405983
2006	76.0562771267131
2007	76.597175513973
2008	77.2837498827092
2009	78.0514275039994
2010	78.5476847065399
2011	78.5277194592892
2012	78.3323912849357
2013	78.2761653795157
2014	78.3658616733161
2015	78.3641397248646
2016	77.9916623671881
2017	77.3310010066811
2018	76.5296941553295
2019	75.596783720183
2020	74.6939758991294
2021	73.8808837243788
2022	73.043156449671
2023	72.1801901766715