Year	% of population
2006	11.5542361622136
2009	8.26926400763787
2011	9.76713955592257
2012	9.7158188065896
2015	10.5835194924325
2016	10.3491801213966
2017	10.977297009706
2018	11.0124490626591
2019	10.5398803410033
2020	8.45263131356012