Year	% of total population
1960	99.19132653061224
1961	99.24494830827068
1962	99.49817163752715
1963	99.68456824512535
1964	99.61408557775847
1965	99.51815146536647
1966	99.21774193548387
1967	99.04561084142395
1968	99.24781312127237
1969	99.60969400244798
1970	99.89313123551764
1971	99.90889299067632
1972	99.91284147927895
1973	99.84655722754218
1974	99.84769934523275
1975	99.87395032263767
1976	99.8076134827541
1977	99.55769148066916
1978	99.48287729435758
1979	99.54331864904552
1980	99.9069987095812
1981	97.13964786494186
1982	95.12984485725492
1983	96.24029442075357
1984	96.76929501676474
1985	98.88806731977148
1986	100
1987	100
1988	100
1989	100
1990	98.87832230438327
1991	98.77154767513332
1992	98.7227218390577
1993	99.21885539363404
1994	99.01440400953716
1995	98.70259832158038
1996	97.15120042367894
1997	96.13009669555468
1998	95.01496353775566
1999	96.45691299946978
2000	97.17154428612322
2001	97.11859221287904
2002	98.92857912570791
2003	100
2004	100
2005	100
2006	100
2007	100
2008	100
2009	99.55780095850227
2010	99.95114967660298
2011	99.85201655655202
2012	99.21920956427343
2013	99.2901676223088
2014	99.60908448031381
2015	100
2016	100
2017	100
2018	100
2019	100
2020	100
2021	100
2022	100
2023	100