Year	%
2001	13.66
2002	12.81
2003	12.67
2004	11.69
2005	11.99
2006	9.58
2007	9.41
2008	9.41
2009	9.41
2010	10.31
2011	9.7
2012	9.56
2013	10.21
2014	9.28
2015	8.07
2016	8.21
2017	11.92
2018	11.02
2019	9.27
2020	8.06
2021	8.46