Year	% of population
2008	2.42077787173972
2009	2.54083544655804
2010	2.9659204969977
2011	2.52646800752432
2012	3.27665528217849
2015	4.03823877742083
2016	4.15350159705831
2017	3.55909390303273
2018	4.09433456366841
2019	3.71274001720375
2020	9.16891579326766