Year	%
1996	25.08
1999	22.19
2000	15.39
2001	12.49
2002	12.49
2003	13.92
2004	13.91
2005	13.91
2006	11.65
2007	13.72
2008	12.95
2009	14.08
2010	14.83
2011	14.83
2012	14.17
2013	14.31
2014	14.06
2015	14.17
2016	13.55
2017	12.53
2018	15.62
2019	13.07
2020	13.07
2021	13.07