Year	%
1996	18.58
1999	16.2
2000	11.31
2001	15.81
2002	12.04
2003	11.43
2006	11.8
2007	12.63
2008	12.72
2010	12.51
2011	12.46
2012	13.32
2013	12.16
2015	12.23
2016	13.13
2019	11.4