Year	%
1993	3.951447
1996	0.1398191
1998	0.0986066
1999	0.1014349
2000	0.0824694
2001	0.2348259
2003	0.0974528
2004	0.0897468
2005	0.0831268
2006	0.0250383
2007	6.272493
2008	6.172785
2009	4.467311
2010	4.35564
2011	4.211934
2012	0.0247039
2013	3.942628
2014	3.543972
2015	2.873012
2016	0.0749679
2017	0
2019	0
2021	0