Year	Percent
2000-01-01	22.6692
2001-01-01	18.5585
2002-01-01	18.0947
2003-01-01	16.3635
2004-01-01	15.6994
2005-01-01	13.9064
2006-01-01	14.9406
2007-01-01	13.5528
2008-01-01	31.2600
2009-01-01	75.0500
2010-01-01	79.7500
2011-01-01	80.4300
2012-01-01	91.7700
2013-01-01	99.7200
2014-01-01	113.9800
2015-01-01	111.4800
2016-01-01	117.9000