Year	% of total population
1960	24.907149516729582
1961	25.64546476006798
1962	26.303632359365366
1963	26.88549300467456
1964	27.48020724076111
1965	27.640762557531364
1966	27.80145636715082
1967	27.986097849377018
1968	28.166391963917174
1969	28.334195723354576
1970	28.496523920602538
1971	28.673663863448866
1972	28.87962999529953
1973	29.15797910829101
1974	29.5102749640988
1975	29.88099043987401
1976	30.237160132115044
1977	30.606506218920384
1978	31.162707196232656
1979	31.906378133416357
1980	32.66296735185837
1981	33.44977627124487
1982	34.2420306405321
1983	34.953465522811015
1984	35.68403172333547
1985	36.411059221944825
1986	37.130471199702036
1987	37.839784509108966
1988	38.546460063998936
1989	39.24565180563507
1990	39.94481304211349
1991	40.704370386559916
1992	41.48031705672012
1993	42.26550452930532
1994	43.056960625454096
1995	43.85725540379307
1996	44.6649082773738
1997	45.47917156613616
1998	46.307398204226836
1999	47.14812574159551
2000	48.00914116313514
2001	48.93930953766265
2002	49.929499269596455
2003	50.92989978213311
2004	51.94160217330566
2005	52.95540241747095
2006	53.94489538585148
2007	54.91889941742603
2008	55.8992883912441
2009	56.87871564850871
2010	57.852721193202825
2011	58.767059415254046
2012	59.65183709726175
2013	60.53236550057882
2014	61.41000898683858
2015	62.28404575585261
2016	63.15026528943941
2017	64.00468475942594
2018	64.84490830414245
2019	65.66453127424894
2020	66.45933530416669
2021	67.23119924822937
2022	67.9787090536337
2023	68.70767849945442