Year	% of total population
1960	2.78597615045595
1961	2.80004622515933
1962	2.78412329867223
1963	2.73018599619986
1964	2.70457095005609
1965	2.70361895075854
1966	2.73658404524125
1967	2.75796025855877
1968	2.75382093106581
1969	2.75279978925935
1970	2.75125900918254
1971	2.74740804058898
1972	2.74550927669914
1973	2.74756496219591
1974	2.77259590120862
1975	2.8281045709538
1976	2.89592502655942
1977	2.93242788191716
1978	2.93415890634212
1979	2.94178813253491
1980	2.95292123623067
1981	2.97009447018473
1982	3.02184138778201
1983	3.10134865987595
1984	3.17876704731125
1985	3.25523296490138
1986	3.33061842749849
1987	3.40672650848758
1988	3.49801734228316
1989	3.61346389812134
1990	3.74466364620123
1991	3.86512231699871
1992	3.9590811515935
1993	4.02685542885821
1994	4.077535859324
1995	4.11973562337766
1996	4.15645708012427
1997	4.19253571258545
1998	4.22706987831582
1999	4.26291497220256
2000	4.30144341550367
2001	4.34431089311702
2002	4.40525211716261
2003	4.48091250776917
2004	4.55805841865016
2005	4.63483294985845
2006	4.70116723915334
2007	4.74411743088441
2008	4.76752856032995
2009	4.77802625584959
2010	4.77676496045903
2011	4.77079312048322
2012	4.7518220912156
2013	4.7286922511366
2014	4.7168127995559
2015	4.72121451782061
2016	4.7461857315222
2017	4.78978179882916
2018	4.85190819309398
2019	4.92766822947021
2020	5.01420233146218
2021	5.10961584172899
2022	5.21827306166866
2023	5.34005964170666