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	12.35
2007	14.26
2008	13.64
2009	14.08
2010	14.83
2011	14.83
2012	15.09
2013	15.16
2014	14.88
2015	14.9
2016	14.26
2017	13.51
2018	16.21
2019	13.73
2020	13.73
2021	13.73