Year	%
2001	16.81
2002	16.76
2003	16.9
2005	10.96
2006	10.72
2007	11.01
2008	11.17
2010	9.72
2011	8.95
2012	9.26
2014	8.06
2016	9.71
2020	9.87
2021	9.21