Year	%
1992	8.968296
1996	13.07131
1997	13.07221
1998	13.07221
1999	12.37892
2000	12.35282
2001	10.28755
2002	10.25295
2003	9.978548
2004	19.26837
2005	19.74796
2006	20.18741
2007	19.57359
2008	14.90985
2009	14.46776
2010	21.67292
2011	12.90381
2014	6.459964
2016	6.283561
2017	0
2018	0
2019	0
2020	0
2021	0