Year	%
2002	17.03
2003	16.45
2004	13.66
2005	16.35
2006	16.62
2007	15.9
2008	14.92
2009	15.43
2010	15.39
2011	13.86
2012	13.7
2013	13.23
2014	13.81
2015	13.34
2016	12.9
2020	12.9