Year	%
1996	18.71
1999	15.2
2000	15.54
2001	11.61
2002	11.84
2003	11.5
2006	6.21
2007	11.08
2008	6.31
2009	11.58
2010	6.6
2011	6.84
2012	7.13
2013	8.01
2015	6.73
2016	6.58
2017	6.61
2018	3.74
2019	9.55
2020	6.51
2021	4.73