Year	%
2001	16.1
2002	15.03
2003	15.59
2005	11.75
2006	11.57
2007	14.98
2008	13.02
2010	10.47
2011	9.65
2012	9.16
2014	9.95
2016	10.98
2020	8.55
2021	8.57