Year	Percent
1996-01-01	56.2500
1997-01-01	54.5977
1998-01-01	48.5756
1999-01-01	19.9881
2000-01-01	19.9896
2001-01-01	24.7599
2002-01-01	23.5411
2003-01-01	21.4286
2004-01-01	19.9881
2005-01-01	59.6587
2006-01-01	36.7078
2007-01-01	36.6009
2008-01-01	36.6009
2009-01-01	19.9881
2010-01-01	26.7691
2011-01-01	44.6600
2012-01-01	55.5375
2013-01-01	63.4101
2014-01-01	60.9972