Year	%
2002	21.15
2003	21.26
2005	20.2
2006	15.91
2007	13.66
2008	12.92
2009	10.26
2010	9.89
2011	9.8
2012	10.15
2013	9.4
2014	9.42
2015	10.04
2016	10.13
2018	10.09
2019	10.85
2020	11.1
2021	10.64