Year	Index
1992-01-01	16.114200000000000
1993-01-01	16.915300000000000
1994-01-01	24.619300000000000
1995-01-01	19.131200000000000
1996-01-01	20.089800000000000
1997-01-01	24.797100000000000
1998-01-01	41.516000000000005
1999-01-01	48.007800000000000
2000-01-01	30.494700000000000
2001-01-01	25.928900000000000
2002-01-01	23.000300000000000
2003-01-01	21.828800000000000
2004-01-01	18.571600000000000
2005-01-01	19.495500000000000
2006-01-01	24.098100000000000
2007-01-01	22.634000000000000
2008-01-01	24.233500000000000
2009-01-01	43.271900000000000
2010-01-01	36.208500000000000
2011-01-01	26.078000000000003
2012-01-01	26.410900000000000
2013-01-01	19.404600000000000
2014-01-01	16.778900000000000
2015-01-01	18.210400000000000
2016-01-01	18.426500000000000
2017-01-01	15.204100000000000