Year	% of total population
1960	4.60212658357222
1961	4.52513323932104
1962	4.44487998945695
1963	4.36415180596363
1964	4.28556531781447
1965	4.21012181790913
1966	4.13888085744631
1967	4.07253157492357
1968	4.00992161835671
1969	3.94953374474761
1970	3.89245189935866
1971	3.83896472713348
1972	3.78820837637029
1973	3.74337673870606
1974	3.7096359014302
1975	3.68807194587622
1976	3.67930803963502
1977	3.68342666150681
1978	3.69524725265464
1979	3.7069532432354
1980	3.71446381503481
1981	3.71702135454317
1982	3.71405104654862
1983	3.70899511623235
1984	3.70927384403754
1985	3.72103856672644
1986	3.74713806899319
1987	3.7891435066927
1988	3.84674196917437
1989	3.91749983386688
1990	3.99742101252771
1991	4.08223947737094
1992	4.16947721972304
1993	4.2566988139313
1994	4.34109188403028
1995	4.42197751062616
1996	4.50090047138391
1997	4.57995826353517
1998	4.65985887268397
1999	4.74081388354507
2000	4.82378459854337
2001	4.90909633015274
2002	4.99664571852183
2003	5.08797167650746
2004	5.18598916073757
2005	5.29084888563819
2006	5.40035818959036
2007	5.51415991294595
2008	5.63285117395243
2009	5.75574149382823
2010	5.88091311797781
2011	6.00617099872107
2012	6.13739460573294
2013	6.29168199851561
2014	6.47155901926019
2015	6.66142583475746
2016	6.85274597868499
2017	7.04441483423553
2018	7.22483388328224
2019	7.40986351819551
2020	7.54415837239534
2021	7.64207269721988
2022	7.82842619854453
2023	8.07577467427475