Year	%
1997	40.22055
2000	40.55685
2001	40.77698
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	17.4365
2009	0
2010	0
2011	18.47066
2012	0
2013	15.82448
2014	13.00379
2015	12.43094
2016	10.68665
2017	19.66054
2018	0
2019	0
2020	0
2021	0