Year	Percent
1998-01-01	42.8000
1999-01-01	73.9000
2000-01-01	102.6000
2001-01-01	108.1000
2002-01-01	112.5000
2003-01-01	118.0000
2004-01-01	148.5000
2005-01-01	176.9000
2006-01-01	170.8000
2007-01-01	144.0000
2008-01-01	65.8000
2009-01-01	70.9000
2010-01-01	75.6721
2011-01-01	74.0915
2012-01-01	72.1721
2013-01-01	71.0516
2014-01-01	71.7080
2015-01-01	62.3215
2016-01-01	68.4784