Year	%
1996	9.56
1997	10.1
2000	8.86
2001	8.86
2002	9.86
2008	9.87
2009	9.82
2010	10.16
2011	10.14
2012	10.31
2013	9.89
2014	8.89
2015	8.36
2016	8.25
2017	7.6
2018	8.35
2019	15.09
2020	7.76
2021	7.97