Year	%
1996	21.58
1999	16.77
2000	10.29
2001	16.25
2002	11.28
2003	10.37
2006	10.53
2007	11.55
2008	11.44
2010	11.97
2011	11.96
2012	13.21
2013	11.5
2015	10.98
2016	11.91
2019	9.59