Year	% of population
2006	6.706628454318
2009	8.03350121401069
2011	6.10969558708495
2012	6.22008489217209
2015	6.37172520422428
2016	2.96837337804707
2017	3.09901654262445
2018	2.54654465153855
2019	2.66988826954801
2020	2.40806283080276