Year	Percent
1999-01-01	58.553000000000004
2000-01-01	73.676999999999990
2001-01-01	81.634000000000000
2002-01-01	96.863999999999990
2003-01-01	100.497999999999990
2004-01-01	103.952000000000010
2005-01-01	92.215300000000000
2006-01-01	105.467000000000010
2007-01-01	110.662000000000000
2008-01-01	104.562000000000010
2009-01-01	114.639000000000000
2010-01-01	112.911000000000000
2011-01-01	102.727000000000000
2012-01-01	113.182999999999990
2013-01-01	109.100000000000000
2014-01-01	97.453200000000000
2015-01-01	95.936400000000000
2016-01-01	88.411700000000000