Year	Index
1989-01-01	15.613400000000000
1990-01-01	21.924300000000000
1991-01-01	24.021200000000000
1992-01-01	16.926000000000000
1993-01-01	13.194700000000000
1994-01-01	13.977300000000000
1995-01-01	13.706100000000000
1996-01-01	11.734200000000000
1997-01-01	14.817600000000000
1998-01-01	23.281400000000000
1999-01-01	26.720900000000000
2000-01-01	22.594700000000000
2001-01-01	22.951999999999998
2002-01-01	28.893900000000000
2003-01-01	38.080100000000000
2004-01-01	25.237900000000000
2005-01-01	14.131600000000000
2006-01-01	13.642400000000000
2007-01-01	15.475100000000000
2008-01-01	21.947200000000000
2009-01-01	36.124300000000000
2010-01-01	26.729000000000000
2011-01-01	20.442100000000000
2012-01-01	26.595400000000000
2013-01-01	18.549900000000000
2014-01-01	14.440300000000000
2015-01-01	18.339600000000000
2016-01-01	23.434000000000000
2017-01-01	16.817999999999998