Year	% of total population
1960	41.436109726389
1961	41.4056616026095
1962	41.4112195757736
1963	41.5080205326426
1964	41.7050080276466
1965	42.0028712103427
1966	42.3660371612766
1967	42.7083690582511
1968	43.0123937487066
1969	43.2840842892627
1970	43.5270723111576
1971	43.7271403034849
1972	43.8881472052026
1973	44.0169283229434
1974	44.1203507210213
1975	44.2166254872214
1976	44.3101101056421
1977	44.4028245263094
1978	44.4921320820208
1979	44.5729956469813
1980	44.6494666522901
1981	44.7215050492959
1982	44.7764390653429
1983	44.8812570501857
1984	45.0863331811875
1985	45.3540224879036
1986	45.6346361688473
1987	45.9662346820477
1988	45.5282469196007
1989	45.073673271859
1990	45.4189668850642
1991	45.6940613516848
1992	46.0225896107077
1993	46.4097039310626
1994	46.7074954164636
1995	46.9724261923589
1996	47.3127902770505
1997	47.5745250773762
1998	47.4837422509876
1999	47.2520937515224
2000	47.1240336707831
2001	47.0620294440584
2002	47.1507715372767
2003	47.2094142083789
2004	46.9088818103577
2005	46.3098982213018
2006	45.6165669740783
2007	44.882901724288
2008	44.2134383271049
2009	43.6820517949148
2010	42.9932483356314
2011	42.340352726971
2012	42.0684814132311
2013	42.0184672634175
2014	42.7133504014814
2015	43.5325765582742
2016	44.4541823884736
2017	46.0244015291288
2018	46.8495250679644
2019	46.3753914032091
2020	45.4975223517279
2021	44.713710970763
2022	43.8652000403
2023	42.9634064870523