Year	Percent
1998-01-01	117.90000000000000
1999-01-01	120.50000000000000
2000-01-01	121.60000000000000
2001-01-01	143.60000000000000
2002-01-01	79.40000000000000
2003-01-01	66.90000000000000
2004-01-01	110.80000000000000
2005-01-01	127.60000000000000
2006-01-01	144.70000000000000
2007-01-01	134.50000000000000
2008-01-01	124.80000000000000
2009-01-01	107.00000000000000
2010-01-01	126.37200000000001
2011-01-01	121.76799999999999
2012-01-01	103.44300000000000
2013-01-01	144.66899999999998
2014-01-01	202.42100000000000
2015-01-01	164.05400000000000
2016-01-01	167.49800000000000