Year	% of population
1982	10.5
1992	11.2
2000	10.5
2002	11
2006	12.7
2007	12.9
2008	12.6
2009	11.3
2010	12
2011	11.6
2012	10.6
2013	11.4
2014	11.6
2015	12.2
2016	12.2
2017	11.9
2018	12.5
2019	12.1
2020	11.7