Year	Index
1999-01-01	36.057400000000000
2000-01-01	28.123200000000000
2001-01-01	23.136100000000000
2002-01-01	22.747600000000000
2003-01-01	23.970800000000000
2004-01-01	20.801600000000000
2005-01-01	22.776600000000000
2006-01-01	26.605100000000000
2007-01-01	23.808900000000000
2008-01-01	21.710500000000000
2009-01-01	28.642300000000000
2010-01-01	22.559700000000000
2011-01-01	15.614900000000000
2012-01-01	14.725200000000000
2013-01-01	12.402100000000000
2014-01-01	13.267999999999999
2015-01-01	13.258700000000000
2016-01-01	12.484100000000000
2017-01-01	12.443900000000000