Year	Percent
1998-01-01	11.20120000000000000
1999-01-01	0.32826700000000003
2000-01-01	10.98490000000000000
2001-01-01	8.21643999999999900
2002-01-01	8.21643999999999900
2003-01-01	8.21643999999999900
2004-01-01	13.46920000000000000
2005-01-01	9.29234000000000000
2006-01-01	14.82060000000000000
2007-01-01	14.42540000000000000
2008-01-01	6.03548000000000100
2009-01-01	4.37576000000000000
2010-01-01	3.96224000000000000
2011-01-01	4.90531000000000000
2012-01-01	5.09225000000000000
2013-01-01	8.78077000000000000
2014-01-01	3.58386000000000000
2015-01-01	9.48935000000000000
2016-01-01	9.82974000000000000