Year	%
2000	18.92
2001	12.32
2002	12.66
2003	11.44
2004	11.23
2005	7.5
2006	5.63
2007	5.62
2008	5.09
2009	5.13
2010	8.46
2011	8.06
2012	8.1
2013	8.08
2014	4
2015	3.98
2016	4.32
2017	4.41
2020	3.98