Year	% of population
2001	8.744973071616613
2002	8.731005505062397
2003	8.716719701186776
2004	8.699832048273475
2005	8.563015443047574
2006	8.433945403555425
2007	8.230284127273313
2008	8.010220772588141
2009	7.774761337832324
2010	7.918595087106059
2011	8.054451502333578
2012	8.332028583416028
2013	8.302027799398932
2014	8.755818749230592
2015	9.43706347734508
2016	10.042848882198092
2017	10.492550988546755
2018	10.47377770134986
2019	10.506838937529864
2020	10.326314516726143
2021	10.644407877448131