Year	% of population
2001	88.846454166801
2002	88.8034139775803
2003	88.7607795266566
2004	88.7185676881366
2005	88.6768506324111
2006	88.5595194571216
2007	88.4416462106947
2008	88.3230760122172
2009	88.1583557847715
2010	87.8931921119103
2011	87.632671099874
2012	87.3770778473405
2013	87.1264193749024
2014	86.8804159565269
2015	86.6389747290043
2016	86.4019083763836
2017	86.1691254340085
2018	85.9403894101374
2019	85.7156629279255
2020	85.4947213556817
2021	85.2774425394235
2022	85.0637399586713