Year	%
1993	5
2001	13.55
2002	13.7
2003	13.81
2004	13.95
2005	13.7
2006	11.13
2007	11.41
2008	11.41
2009	11.41
2010	11.48
2011	11.24
2012	11.16
2013	11.18
2014	10.26
2015	10.51
2016	12.25
2017	16.37
2018	16.44
2019	14.34
2020	11.09
2021	11.54