Year	%
2001	16.43
2002	16.18
2003	16.29
2005	10.81
2006	10.46
2007	10.53
2008	9.91
2010	9.5
2011	8.94
2012	9.08
2014	4.85
2016	9.77
2020	6.21
2021	5.37