Year	% of total population
1960	46.2671986115583
1961	46.8286950944088
1962	47.3644662584534
1963	47.8658825761169
1964	48.3321781997634
1965	48.7580392480211
1966	49.1240853596396
1967	49.4154035252099
1968	49.6232588483125
1969	49.7342650460115
1970	49.4941313415462
1971	48.9561611544023
1972	48.4078078472998
1973	47.8483260647375
1974	47.2988550261754
1975	46.8048467671776
1976	46.3659888116451
1977	45.9496468345105
1978	45.5429014370044
1979	45.1371769383698
1980	44.7144278279743
1981	44.2257795066521
1982	43.7047074532365
1983	43.2274088001838
1984	42.8089676898285
1985	42.4166296299086
1986	42.0077961864705
1987	41.5846615002193
1988	41.1533288379087
1989	40.6997896145782
1990	40.15291529926
1991	39.5148629118623
1992	38.6835814779402
1993	37.6899031262723
1994	36.733494286388
1995	35.8278415207289
1996	34.9635316200014
1997	34.1213477942028
1998	33.2995441649932
1999	32.5416810158257
2000	31.7996865203762
2001	30.9822626694107
2002	30.1354454123777
2003	29.3247631810557
2004	28.5489439170964
2005	27.785386264213
2006	27.020565328784
2007	26.263147840829
2008	25.5347736332574
2009	24.8509760589319
2010	24.068798081142
2011	23.2169879549567
2012	22.472620780481
2013	21.8245357903419
2014	21.2272637561605
2015	20.6487760714713
2016	20.1155240386932
2017	19.6609346733385
2018	19.2683036517359
2019	18.9060019542679
2020	18.5729469165042
2021	18.2937520699799
2022	18.0390030996761
2023	17.7460874003473