Year	% of population
2007	6.87654372817789
2008	9.15791905689434
2009	12.6762527616909
2010	25.1875712462644
2011	21.888491735971
2012	76.7599882787543
2014	20.2291053322489
2015	75.3553856576019
2016	75.3622332119687
2017	64.785163682101
2018	56.1515400849277
2019	66.8337868495911