Year	% of total population
1960	9.51180049593169
1961	9.65650136364237
1962	9.78943336556641
1963	9.88449282533713
1964	10.0011370103557
1965	10.1464886670815
1966	10.3092607950101
1967	10.4896290890722
1968	10.6596704168753
1969	10.8429633669347
1970	11.0699103871282
1971	11.3198427361379
1972	11.5528025690771
1973	11.7610789262878
1974	11.9842697851301
1975	12.2077301391264
1976	12.4245186118284
1977	12.6584755664396
1978	12.9122096202112
1979	13.1621192452854
1980	13.2790683812868
1981	13.283866983708
1982	13.2228046863241
1983	13.0568093373254
1984	12.9568326788029
1985	13.1329453559646
1986	13.4848448694504
1987	13.846974279776
1988	14.2183011143217
1989	14.5894008648877
1990	14.9539319339662
1991	15.3254438119868
1992	15.6964024126362
1993	16.0432118796147
1994	16.377506963997
1995	16.7468494598496
1996	17.1180112259496
1997	17.4302950733209
1998	17.7188904127001
1999	18.0067675044308
2000	18.3060303225248
2001	18.595250275715
2002	18.8701711158223
2003	19.1240904435721
2004	19.3929222481575
2005	19.709456941111
2006	19.9832575453702
2007	20.1356312660845
2008	20.2190544364795
2009	20.3154967037251
2010	20.4058116977824
2011	20.6344425877197
2012	20.9822852147782
2013	21.3243602607445
2014	21.6875084436369
2015	22.0058509214216
2016	22.2808300518975
2017	22.5239438909705
2018	22.7620800096023
2019	23.0628761765936
2020	23.3720710799476
2021	23.6803772335534
2022	24.0535790877503
2023	24.4603048924328