Year	% of population
2008	7.57090273907423
2009	14.6043175464886
2010	4.91342048680557
2011	5.12051643822612
2012	4.61524236312107
2014	5.43210812016813
2015	4.84240949636282
2016	5.35591402929643
2017	7.16438080975948
2018	6.4408123529028
2019	6.96193932229243
2020	7.24386690386148