Year	%
2001	15.03
2002	15.03
2003	13.59
2004	13.78
2005	13.56
2006	13.29
2007	13.48
2008	13.23
2009	12.97
2010	12.86
2011	12.78
2012	13.02
2013	13.43
2014	12.99
2017	13.37
2018	13.23
2019	11.74
2020	12.5
2021	12.57