Year	% of population
2008	41.9628960707122
2009	40.5882683949726
2010	41.825697431504
2011	38.9209349837938
2012	40.328168872078
2015	39.544310370942
2016	40.1718898685886
2017	38.6337634294666
2018	40.0147479582493
2019	40.3665394157834
2020	40.8163989378838