Year	%
2008	10.2710287818937
2009	8.58312049678553
2010	7.33234907813833
2011	5.59280508440585
2012	5.10621026773848
2013	5.93276512911765
2014	5.22375545391187
2015	5.9061271414496
2016	7.08391549135575
2017	7.22493587241291
2018	5.81130293445234