Year	%
2003	11.675
2004	11.7
2005	11.777
2006	11.56
2007	11.6014212321463
2008	13.3048512276057
2009	13.14
2010	11.94
2011	11.1615765030269
2012	14.8118430175014
2013	14.7627730560652
2014	16.9421072305273
2015	16.3
2016	12.8