Year	Percent
1998-01-01	58.6279
1999-01-01	58.6279
2000-01-01	58.6279
2001-01-01	58.6279
2002-01-01	91.2836
2003-01-01	91.2836
2004-01-01	84.2723
2005-01-01	25.0000
2006-01-01	20.0000
2007-01-01	47.2161
2008-01-01	18.7676
2009-01-01	46.3170
2010-01-01	62.5994
2011-01-01	22.7206
2012-01-01	23.2455
2013-01-01	30.4406
2014-01-01	34.6695