Year	%
1997	55.23196
2000	37.91373
2001	37.95427
2002	0
2003	0.0175217
2004	0
2005	0
2006	0
2007	0
2008	10.38025
2009	0
2010	0
2011	10.1574
2012	0
2013	7.301587
2014	5.71693
2015	5.509901
2016	5.376235
2017	6.842105
2018	0
2019	0
2020	0
2021	0