Year	%
2001	13.46
2002	13.46
2003	13.74
2004	14.86
2005	13.59
2006	12.08
2007	11.93
2008	13.53
2009	9.62
2010	10.53
2011	10.29
2012	8.47
2013	12.23
2014	9.96
2017	12.84
2018	12.19
2019	8.9
2020	10.04
2021	10.34