Year	% of population
2004	29.8820650623239
2005	28.4232203963655
2006	30.0701045612971
2007	32.1344601317435
2008	35.7000941462211
2009	13.0753692024575
2010	12.3897485394377
2011	11.9204004424265
2012	9.26069882386647
2013	11.1021417206149
2014	11.7296494601845
2015	9.65385822906384
2016	10.8929499268466
2017	10.579631215981
2018	10.1315329189937
2019	8.83653710873411