Year	%
1996	15.3
1999	15.37
2000	13.68
2001	15.12
2002	13.49
2003	14.18
2006	15.75
2007	15.72
2008	15.7
2010	13.11
2011	13.18
2012	13.47
2013	13.48
2015	14.9
2016	15.8
2019	16.34