Year	Percent
2000-01-01	23.89666030930510
2001-01-01	20.17209521634750
2002-01-01	14.74006524318240
2003-01-01	17.52552271070570
2004-01-01	23.62313217044370
2005-01-01	16.16880092911970
2006-01-01	9.93804072361684
2007-01-01	12.15083114726300
2008-01-01	12.47992817102400
2009-01-01	31.62500000000000
2010-01-01	35.37500000000000
2011-01-01	23.90000000000000
2012-01-01	22.92500000000000
2013-01-01	18.02500000000000
2014-01-01	19.22500000000000
2015-01-01	14.13811641706700
2016-01-01	15.90647376181060
2017-01-01	13.81732376929370