Year	Percent
1998-01-01	14.47500
1999-01-01	23.22810
2000-01-01	17.20000
2001-01-01	43.00000
2002-01-01	21.29570
2003-01-01	25.95660
2004-01-01	24.39370
2005-01-01	23.59500
2006-01-01	21.04890
2007-01-01	25.90510
2008-01-01	17.65150
2009-01-01	8.36175
2010-01-01	8.36175
2011-01-01	8.36175
2012-01-01	8.36175
2013-01-01	8.36175
2014-01-01	46.60660
2015-01-01	47.22230
2016-01-01	43.96620