Year	Percent
1999-01-01	114.9000
2000-01-01	45.3000
2001-01-01	45.3000
2002-01-01	80.5000
2003-01-01	81.0000
2004-01-01	80.1000
2005-01-01	80.6000
2006-01-01	80.6000
2007-01-01	80.6000
2008-01-01	21.1000
2009-01-01	23.3000
2010-01-01	36.9258
2011-01-01	40.5835
2012-01-01	45.2760
2013-01-01	59.5488
2014-01-01	62.8560
2015-01-01	66.7673
2016-01-01	70.6997