Year	% of total population
1960	3.94756231341451
1961	3.99357492062979
1962	4.04696051628856
1963	4.10277487959362
1964	4.15900196459559
1965	4.21235982849604
1966	4.26084829708742
1967	4.3120601673442
1968	4.36601411347553
1969	4.4161212538753
1970	4.46212047725288
1971	4.50508916173179
1972	4.54549724301831
1973	4.58314641557252
1974	4.62135674614204
1975	4.65438531978439
1976	4.68253373478573
1977	4.71595094683018
1978	4.75395453035427
1979	4.78936904886471
1980	4.82106007415751
1981	4.8705294632733
1982	4.93725905058501
1983	5.01438409224505
1984	5.10011521575202
1985	5.18677825402445
1986	5.27077097682285
1987	5.34763854364673
1988	5.42299662121961
1989	5.4938717681275
1990	5.55161242717901
1991	5.59408325448729
1992	5.67408823931157
1993	5.80737640103503
1994	5.95836252959754
1995	6.12873158820595
1996	6.31620650910248
1997	6.51832696488993
1998	6.73552006630327
1999	6.95362878383374
2000	7.16332288401254
2001	7.30259942027542
2002	7.33624022323926
2003	7.33011748182267
2004	7.33230231552798
2005	7.36310015085966
2006	7.42087889973839
2007	7.4953139364128
2008	7.58975180334093
2009	7.70622467771639
2010	7.80764618129698
2011	7.88460924043905
2012	7.97000993507544
2013	8.05961656181655
2014	8.14457376425529
2015	8.23041401183216
2016	8.32164205120356
2017	8.43204158870196
2018	8.56887479762547
2019	8.7275700162669
2020	8.91643164199256
2021	9.07896677734391
2022	9.23147491764314
2023	9.49426078080011