Year	% of total population
1960	1.157017047619112
1961	1.1898627149653358
1962	1.226568835830992
1963	1.2675981751700163
1964	1.3094887916559426
1965	1.3481031502127288
1966	1.3846605464949255
1967	1.4192859141148473
1968	1.4533002367552246
1969	1.4880571876441782
1970	1.5241377416449735
1971	1.6026535817201908
1972	1.690452533974082
1973	1.7825868109846168
1974	1.880256768183434
1975	1.983853866329359
1976	2.0937320562530886
1977	2.209793671753025
1978	2.3326716041376256
1979	2.395704376539845
1980	2.4443109637063665
1981	2.4865094710257285
1982	2.52544711563976
1983	2.570520920586354
1984	2.6238089899680173
1985	2.6752295287893952
1986	2.722073488212325
1987	2.770393963385947
1988	2.831359042849593
1989	2.9083275856226862
1990	2.9937587107692636
1991	3.0885767106559845
1992	3.2665953438903577
1993	3.4346480719163437
1994	4.377597875432685
1995	5.626020657662694
1996	5.172503651993669
1997	4.9441143892860735
1998	5.243570621297607
1999	5.672951676534633
2000	6.134977495037293
2001	6.623077670425895
2002	7.122864357800587
2003	7.260335910677789
2004	7.330877802438235
2005	7.3974948093343675
2006	7.462611377308424
2007	7.526119459406785
2008	7.591467017569829
2009	7.659768470639962
2010	7.731657805665732
2011	7.807462504249815
2012	7.892736515314011
2013	7.9845874600836835
2014	8.077652795442404
2015	8.171110110410936
2016	8.2609365815602
2017	8.348754682924161
2018	8.441208164057414
2019	8.529751551769111
2020	8.61151548998879
2021	8.690378348118779
2022	8.77057768124118
2023	8.851217157562182