Year	%
1996	18.71
1997	14
1998	14.03
1999	16.45
2000	15
2001	11.22
2002	12.5
2003	12.03
2006	11.9
2007	11.73
2010	11.41
2011	13.26
2012	11.93
2013	13.26
2015	11.98
2016	11.98
2017	11.98
2020	12.35