Year	% of population
2001	85.8643567466223
2002	86.0295829741817
2003	86.1932036066817
2004	86.355229689874
2005	86.5153345819956
2006	86.6610247489783
2007	86.6800967046038
2008	86.2704200640935
2009	85.8537920591275
2010	85.4310277601314
2011	85.0023277739981
2012	84.5664339716106
2013	84.1230311092403
2014	83.6729549393833
2015	83.2161395070542
2016	82.7531180659239
2017	82.2838360093714
2018	81.8090546676548
2019	81.3284518768247
2020	81.3783281591954
2021	81.4221056993506
2022	81.4596743556766