Year	%
2001	13.66
2002	12.81
2003	12.67
2004	11.69
2005	11.99
2006	11.54
2007	10.59
2008	10.59
2009	10.59
2010	11.11
2011	10.74
2012	11.05
2013	11.96
2014	10.82
2015	10.41
2016	10.85
2017	11.92
2018	12.89
2019	14.35
2020	11.08
2021	11.01