Year	% of population
2005	7.22258917148581
2006	5.92499355348703
2007	4.8167533401203
2008	3.90168241990216
2009	4.9203874596711
2010	1.23348538702455
2011	0.978424071707425
2012	1.19514223013628
2015	0.856002828053946
2016	0.886068218751456
2017	0.745793271662493