Year	% of total population
1960	33.733019210741
1961	33.887704307462
1962	33.9197023790505
1963	33.8354601183369
1964	33.6269423376176
1965	33.2920738460257
1966	32.824129563195
1967	32.2392266777081
1968	31.595570088909
1969	30.9226096233661
1970	30.1367715350762
1971	29.3019647279765
1972	28.5186323185248
1973	27.7313548036046
1974	26.94309839477
1975	26.174762446398
1976	25.4318141821208
1977	24.7169249347948
1978	24.0162691253834
1979	23.3475207443506
1980	22.7695381224889
1981	22.3292278082744
1982	22.0184158188843
1983	21.7771328786092
1984	21.5470089524578
1985	21.2955916926152
1986	21.0620885507625
1987	20.9105167576737
1988	20.8194766941448
1989	20.7522894791687
1990	20.7096852467501
1991	20.6975159571342
1992	20.6959958448746
1993	20.655386175464
1994	20.5502338180506
1995	20.3963700547527
1996	20.2105832870878
1997	19.9959779474126
1998	19.7518548133589
1999	19.4772313711836
2000	19.1803802148155
2001	18.8801514058626
2002	18.5939355601062
2003	18.3133577592273
2004	18.0129503413461
2005	17.6890127848608
2006	17.3790286920821
2007	17.1221790968561
2008	16.9139866334585
2009	16.7285836301852
2010	16.5573556544119
2011	16.417837372268
2012	16.325320924896
2013	16.2713032692422
2014	16.2428037615894
2015	16.2364324473724
2016	16.2256366948544
2017	16.1748393949584
2018	16.0869478578438
2019	15.9841708131805
2020	15.8683623523158
2021	15.7333681352269
2022	15.5770948741347
2023	15.4052205816818