Year	%
2000	22.14
2001	14.23
2002	14.25
2003	12.37
2004	12.25
2005	12.79
2006	10.48
2007	10.09
2008	9.74
2009	9.03
2010	8.46
2011	8.42
2012	8.32
2013	8.33
2014	9.14
2015	8.98
2016	8.98
2017	8.95
2020	9.19