Year	Percent
2005	1.9567
2006	5.6029
2008	5.2988
2009	6.135
2010	2.0812
2011	2.9678
2012	3.4141
2013	3.1301
2014	2.6534
2015	3.5487
2016	4.6309
2017	4.6175