Year	% of population
2006	7.63871881161395
2009	8.51851130369958
2011	6.55057525145819
2012	6.88889268838055
2015	7.85527425446713
2016	3.65313124147202
2017	3.70017814933999
2018	3.32986140415769
2019	2.98585299517504
2020	2.69155930406467