Year	% of population
2007	5.4084113060992
2008	8.6347675463757
2009	6.34694678010082
2010	5.65257258933091
2011	5.57171846257545
2012	5.45936556188791
2014	6.15611135696081
2015	5.25145672362887
2016	5.24140428849424
2017	5.51681221260428
2018	5.81946185475805
2019	6.71447747391487