Year	%
1994	16.65
1996	15.43
1998	14.64
2000	15.3
2002	14.45
2004	15.47
2006	14
2007	11.3
2008	11.79
2009	11.3
2010	11.13
2011	11.04
2012	11.69
2013	11.03
2014	12.22
2015	12.14
2016	10.19
2017	11.27
2018	10.82
2019	10.81
2020	11.18
2021	10.82