Year	% of total population
1960	25.101842165274018
1961	25.59121388797001
1962	26.046966911841533
1963	26.501398318450097
1964	26.963941481492547
1965	27.436828338506707
1966	27.927997974026663
1967	28.438355455361048
1968	28.973052982883633
1969	29.527770333759623
1970	30.031961735615898
1971	30.087257034954128
1972	30.153758222339803
1973	30.23363577840129
1974	30.33366535042788
1975	30.452954562746847
1976	30.594473302129188
1977	30.753982401848234
1978	30.932682415856366
1979	31.124419007288367
1980	31.336692578949172
1981	31.62346013063803
1982	31.914837578106443
1983	32.20911708797574
1984	32.51222191334699
1985	32.82629325941654
1986	33.15568590451098
1987	33.499417342008705
1988	33.85986410377963
1989	34.23523108897723
1990	34.638778955480234
1991	35.16544872911907
1992	35.71376559966364
1993	36.27142330639436
1994	36.84423711714014
1995	37.4304831213663
1996	38.031596121526654
1997	38.64247140727414
1998	39.26982642659358
1999	39.91277963521705
2000	40.499431827835345
2001	40.56851563398392
2002	40.645372141532015
2003	40.729090447346124
2004	40.815327299787164
2005	40.90359929676563
2006	41.00614711333256
2007	41.119164334916455
2008	41.24029118158337
2009	41.368364892060136
2010	41.50916059837449
2011	41.654697595938266
2012	41.801163398282014
2013	41.955632731798254
2014	42.11759278521639
2015	42.28142889525888
2016	42.448717643038236
2017	42.624173505143844
2018	42.8182668288016
2019	43.040265259660174
2020	43.319037182411684
2021	43.6443224467724
2022	43.958883822254826
2023	44.244125058442236