Year	% of population
2008	2.12483114164244
2009	2.34833118595078
2010	2.7388723491386
2011	2.49409345817405
2013	2.71743333819519
2015	2.74146479414887
2016	3.45708611543446
2017	3.36646005821658
2018	3.29644598913475
2019	3.34402818250187