Year	%
2000	27.86
2001	22.1
2002	21.67
2003	20.27
2004	20.5
2005	15.42
2006	14.33
2007	14.34
2008	14.47
2009	14.09
2010	19
2011	19.43
2012	17.87
2013	17.39
2014	9.09
2015	8.94
2016	9.27
2017	10.55
2020	12.15