Year	%
2001	9.91
2002	9.17
2004	10.62
2005	3.52
2006	5.11
2007	8.41
2008	4.8
2009	3.91
2010	3.16
2011	2.77
2012	2.8
2013	7.91
2014	3.05
2015	2.59
2016	6.47
2017	2.86
2018	2.86
2019	2.85
2020	2.89
2021	2.85