Year	% of total population
1960	33.602516003072715
1961	34.08956530799093
1962	34.521119561760045
1963	34.89798685829442
1964	35.2821182557482
1965	35.499521303861336
1966	35.69858960435409
1967	35.911333307246615
1968	36.119098116021746
1969	36.31582909783325
1970	36.50578410673373
1971	36.70712894700006
1972	36.92017427968389
1973	37.15342840169578
1974	37.41781378342185
1975	37.649413316448246
1976	37.90999431179588
1977	38.17618000336254
1978	38.511833048600614
1979	38.91554117745287
1980	39.330137705147116
1981	39.75515945878415
1982	40.13364288622528
1983	40.47647802383781
1984	40.83184260071513
1985	41.189828710271364
1986	41.55393266503402
1987	41.92086473095086
1988	42.287792461892984
1989	42.64445882664624
1990	43.00390937266991
1991	43.37202777653178
1992	43.73668663125085
1993	44.095278320344796
1994	44.45685067682496
1995	44.81722275656102
1996	45.17462044050465
1997	45.537204983429945
1998	45.90612068030492
1999	46.27746965964543
2000	46.65785771519824
2001	47.103044876519725
2002	47.59261819973353
2003	48.08396159648765
2004	48.582902301938546
2005	49.088040046730356
2006	49.58826093917252
2007	50.08182892258993
2008	50.58832704922731
2009	51.086933174148186
2010	51.57621201543195
2011	52.02181355013063
2012	52.461280460223996
2013	52.9088674665259
2014	53.36457188776235
2015	53.827249968674934
2016	54.28606634978774
2017	54.73886801613267
2018	55.18762163436149
2019	55.63061249723278
2020	56.06473144145286
2021	56.478131207175025
2022	56.9019548229826
2023	57.337161551684915