Year	% of population
2008	42.2415443496095
2009	52.6485303780352
2010	56.6025018631844
2011	54.4816454775205
2012	57.1600543851877
2015	51.5891619916708
2016	55.4162695794541
2017	55.5060124688208
2018	56.3492040851258
2019	58.0105839063202
2020	34.1588430845401