Year	% of total population
1960	5.438274030173176
1961	5.593089070046426
1962	5.756129364273488
1963	5.921956917615203
1964	6.086925173519569
1965	6.252866322624139
1966	6.426604770715668
1967	6.624949563907566
1968	6.833818094724699
1969	7.054335554019082
1970	7.282897510960115
1971	7.52962288399999
1972	7.7926131654492465
1973	8.043789305262852
1974	8.29581455117285
1975	8.169085109970169
1976	8.380477726153083
1977	8.590735722589196
1978	8.795036257492074
1979	8.978097604560991
1980	9.189379242424385
1981	9.392940502999677
1982	9.54662227376853
1983	9.714349277607411
1984	9.877763813858298
1985	10.04068394078917
1986	10.211257676683212
1987	10.386910432450147
1988	10.569218127221639
1989	10.749507467225126
1990	10.944529820141815
1991	11.135193804297991
1992	11.239988866014768
1993	11.328471640861432
1994	11.425533262999101
1995	11.535039253786888
1996	11.694370712042831
1997	11.817881977976619
1998	11.939057591304875
1999	12.04743573605834
2000	12.170892429724493
2001	12.289981115993559
2002	12.405611623434257
2003	12.52813158106901
2004	12.661249737522136
2005	12.775920244160462
2006	12.892146594412232
2007	12.97104740901078
2008	13.106847629247106
2009	13.25344037887763
2010	13.344736088952876
2011	13.385323366180211
2012	13.470218479403446
2013	13.591957688570075
2014	13.732491142214355
2015	13.931409787754294
2016	14.142990511711217
2017	14.313727838831268
2018	14.481471413731569
2019	14.629619612352911
2020	14.7792451064899
2021	14.937220740352275
2022	15.105691515830786
2023	15.277917539595366