Year	%
2001	13.46
2002	13.46
2003	13.74
2004	14.86
2005	13.59
2006	15.58
2007	11.93
2008	14.82
2009	11.95
2010	13.56
2011	13.32
2012	12.22
2013	12.23
2014	13.46
2017	12.84
2018	12.29
2019	12.67
2020	12.9
2021	13.04