Year	% of total population
1960	7.755429156214234
1961	7.876145418160694
1962	8.005344444273058
1963	8.137280309331269
1964	8.270504115633717
1965	8.407481986602058
1966	8.552700885735613
1967	8.700171073456614
1968	8.85321962552357
1969	9.011014302552033
1970	9.177204217340933
1971	9.368258103011904
1972	9.568522989966548
1973	9.762043048952028
1974	9.959536112448006
1975	9.985042892824557
1976	10.142939356247416
1977	10.29774523321421
1978	10.458690820978333
1979	10.614577987648111
1980	10.763589599917012
1981	10.889274581020667
1982	10.986238640941648
1983	11.087412750288387
1984	11.187645277911141
1985	11.291308165857245
1986	11.40101264360818
1987	11.521684999806073
1988	11.6517330269443
1989	11.781487349423843
1990	11.92575220822997
1991	12.066324877576859
1992	12.196021772715492
1993	12.322334324284624
1994	12.454169671585452
1995	12.58942399364493
1996	12.72392570254849
1997	12.856180178149547
1998	12.990830182169793
1999	13.127553166403459
2000	13.2703908692518
2001	13.400455683414911
2002	13.508161278593777
2003	13.622299974130925
2004	13.744634626561414
2005	13.878410314916822
2006	14.024136913037006
2007	14.17478446330246
2008	14.339805482353778
2009	14.511226437952661
2010	14.656035762163123
2011	14.825591524099208
2012	15.007422846069039
2013	15.195182789708117
2014	15.390245852637266
2015	15.593753092196337
2016	15.80715126524649
2017	16.029003304273388
2018	16.263390617149444
2019	16.4767478152935
2020	16.695460700444308
2021	16.928573453218487
2022	17.175420590342352
2023	17.412172896181755