Year	% of population
2007	4.10142984182112
2008	7.22003246381962
2009	6.23661036971288
2010	4.52717326056413
2011	3.53725436295059
2012	4.2543266949739
2014	4.85050073323891
2015	3.90523311309177
2016	3.36466483237776
2017	4.79437115108531
2018	3.29407175523427
2019	6.02212351736492