Year	% of total population
1960	31.0221618761246
1961	31.754677450086128
1962	32.494831780934724
1963	33.26149266782517
1964	34.05379320481441
1965	34.882985099841555
1966	35.673253908897244
1967	36.357628131913245
1968	37.05704885500465
1969	37.76711287506424
1970	38.481548394717514
1971	39.16900070325579
1972	39.87109149296527
1973	40.56623769996264
1974	41.19772990188069
1975	41.7987508859464
1976	42.44446573834488
1977	43.066074901660016
1978	43.54181166897025
1979	43.97176719137818
1980	44.48379225803461
1981	45.03432183311186
1982	45.57116621862219
1983	46.13877694315414
1984	46.7764669844878
1985	47.38966239408125
1986	48.00531931141126
1987	48.57516773867306
1988	49.09980192286637
1989	49.59508467191845
1990	50.074412080139034
1991	50.47117522002704
1992	51.01902670610521
1993	51.434808929540516
1994	51.70241416960869
1995	51.89850358479865
1996	52.09192388796138
1997	52.31617472228782
1998	52.562001040093165
1999	52.81052593337302
2000	53.055997379553666
2001	53.31180114923959
2002	53.56643275869351
2003	53.83016211169899
2004	54.095522468637284
2005	54.43522306720721
2006	54.83430038171503
2007	55.119668255135274
2008	55.55929239418823
2009	55.996756942821996
2010	56.380417555644875
2011	56.637995129467406
2012	56.86422135115577
2013	57.1779738210308
2014	57.50726083179199
2015	57.846153132277706
2016	58.12325538214315
2017	58.37128996670645
2018	58.629576156389554
2019	58.883816974963594
2020	59.087619011040665
2021	59.29488646697673
2022	59.557470652025515
2023	59.82775790317485