Year	%
2001	13.25
2002	12.62
2003	12.33
2004	11.5
2005	12.01
2006	9.21
2007	8.7
2008	8.7
2009	8.7
2010	10.15
2011	9.34
2012	8.59
2013	9.24
2014	8.34
2015	7.33
2016	7.16
2017	9.44
2018	8.77
2019	7.72
2020	7.18
2021	7.64