Year	%
1996	23.76
1999	19.08
2000	13.41
2001	12.19
2002	13.63
2003	13.82
2006	13.79
2007	13.74
2008	15.46
2009	15.62
2010	14.96
2011	14.11
2012	13.5
2013	13.5
2014	14.29
2015	14.29
2016	14.29
2017	15.38
2018	15.58
2019	17.12
2020	10.13