Year	% of total population
1960	3.934337285328801
1961	3.8967278925010524
1962	3.877295050657122
1963	3.8503036030353903
1964	3.823062814948019
1965	3.8128382945229187
1966	3.8268879155087747
1967	3.8606953277447644
1968	3.8975410891809705
1969	3.9313254113942966
1970	3.964629708664784
1971	4.004803464341049
1972	4.047157861527517
1973	4.098210375321054
1974	4.163010191072671
1975	4.233658996364096
1976	4.304184828448932
1977	4.381278960202281
1978	4.472876291362282
1979	4.5755843578691175
1980	4.672681979628726
1981	4.759084689576423
1982	4.837988346350795
1983	4.911090419541196
1984	4.986418406271485
1985	5.073347556419339
1986	5.164566961136992
1987	5.251374254689851
1988	5.343778918616625
1989	5.452548910040913
1990	5.5676094594162375
1991	5.682533649807404
1992	5.809587408187797
1993	5.955886831234718
1994	6.109141501518822
1995	6.268474257079231
1996	6.4318449916375435
1997	6.599880559446
1998	6.788766156776739
1999	6.984937003425367
2000	7.177850813702664
2001	7.37385582387903
2002	7.566651759699417
2003	7.748419858939318
2004	7.912384009971074
2005	8.074619487355525
2006	8.249198062386304
2007	8.417597673556656
2008	8.56935784328871
2009	8.718764873935239
2010	8.874293116349717
2011	9.046361316679613
2012	9.256760638285703
2013	9.508662830021066
2014	9.793866391116435
2015	10.121889405403694
2016	10.470329019988469
2017	10.851554340198332
2018	11.264739890839882
2019	11.688330939240306
2020	12.132496600553752
2021	12.547579529403013
2022	12.977600893687436
2023	13.412386669027589