Year	%
1996	9.44
2004	2.83
2008	5.52
2010	8.63
2011	8.64
2012	8.81
2013	8.68
2014	8.06
2015	7.52
2016	6.53
2017	6.31
2018	6.24
2019	8.07
2020	5.6
2021	5.8