Year	% of total population
1960	6.70304082156828
1961	6.73709816389927
1962	6.79848499202953
1963	6.87974058443771
1964	6.96299929739776
1965	7.03484582303235
1966	7.09173798131245
1967	7.12532288441467
1968	7.14199857106179
1969	7.1558710812339
1970	7.18109256177307
1971	7.23855783479135
1972	7.33669520780467
1973	7.46005451244439
1974	7.59876578915023
1975	7.74765367553582
1976	7.90713511840272
1977	8.07884411434252
1978	8.24337687843452
1979	8.37911157777445
1980	8.47402407332463
1981	8.51031416780922
1982	8.47683627933156
1983	8.39463100014266
1984	8.32241507226822
1985	8.29063447906295
1986	8.28416681889772
1987	8.29315451096984
1988	8.31853249482717
1989	8.34865503512123
1990	8.3915380611047
1991	8.49366513375384
1992	8.67707401474193
1993	8.94863665388513
1994	9.24832222210776
1995	9.55272831692285
1996	9.85017472243461
1997	10.1137533883358
1998	10.3705141007378
1999	10.6264882290843
2000	10.909652160938
2001	11.2372347231327
2002	11.5776381024027
2003	11.923827175234
2004	12.2735834813464
2005	12.5812264813538
2006	12.7907895880925
2007	12.9075163489194
2008	12.9862787653819
2009	13.0231850718176
2010	12.9988558642504
2011	13.0319031067383
2012	13.1912067046784
2013	13.406909584499
2014	13.7043597256479
2015	14.0824475741226
2016	14.4317491849759
2017	14.7777331532893
2018	15.1727479968866
2019	15.5907556520029
2020	15.966123384959
2021	16.2591571190005
2022	16.5502146846707
2023	16.9110329146212