Year	%
1993	14.65
1998	10.6
1999	11.06
2000	11.17
2001	11.11
2002	11.45
2003	12.46
2004	13.38
2005	11.32
2006	11.41
2007	11.72
2008	11.69
2009	12.05
2010	11.27
2011	12.12
2012	11.45
2013	12.01
2014	12.81
2015	12.39
2016	12.28
2017	12.34
2018	11.15
2019	10.78
2020	10.37
2021	10.77