Year	%
1993	17.16
1995	16.24
1997	13.83
1998	13.76
1999	13.76
2000	15.14
2001	12.34
2002	12.34
2003	12.32
2004	12.34
2005	11.95
2006	11.75
2007	11.75
2008	7.95
2009	4.9
2010	4.87
2011	2.94
2013	2.72
2014	2.72
2015	1.49
2017	1.51
2018	1.51
2019	1.51
2020	1.51
2021	1.51