Year	Index
1984-01-01	4.967930000000000
1985-01-01	5.739120000000000
1986-01-01	5.313990000000000
1987-01-01	11.962700000000000
1988-01-01	11.761200000000000
1989-01-01	53.805300000000000
1990-01-01	46.790700000000000
1991-01-01	21.074300000000000
1992-01-01	16.068100000000000
1993-01-01	11.137100000000000
1994-01-01	14.061300000000000
1995-01-01	14.674400000000000
1996-01-01	14.945100000000000
1997-01-01	18.163000000000000
1998-01-01	41.772200000000000
1999-01-01	44.583800000000000
2000-01-01	33.650100000000000
2001-01-01	24.395100000000000
2002-01-01	21.958800000000000
2003-01-01	23.253000000000000
2004-01-01	21.847700000000000
2005-01-01	20.092300000000000
2006-01-01	19.956300000000000
2007-01-01	21.446200000000000
2008-01-01	28.412600000000000
2009-01-01	35.750900000000000
2010-01-01	26.345200000000000
2011-01-01	20.737300000000000
2012-01-01	21.238900000000000
2013-01-01	17.182000000000002
2014-01-01	19.623600000000000
2015-01-01	14.631100000000000
2016-01-01	16.523900000000000
2017-01-01	13.083800000000000