Year	Percent
1999-01-01	35.8000
2000-01-01	29.6000
2001-01-01	25.1000
2002-01-01	21.9000
2003-01-01	28.3000
2004-01-01	30.0000
2005-01-01	5.6000
2006-01-01	4.0000
2007-01-01	3.0000
2008-01-01	3.9000
2009-01-01	13.7000
2010-01-01	15.2665
2011-01-01	14.7323
2012-01-01	16.5423
2013-01-01	12.8861
2014-01-01	18.9844
2015-01-01	28.0348
2016-01-01	30.4683