Year	Index
1990-01-01	17.003900000000000
1991-01-01	14.509600000000000
1992-01-01	9.517950000000000
1993-01-01	6.890550000000000
1994-01-01	6.890550000000000
1995-01-01	9.954970000000000
1996-01-01	6.870480000000001
1997-01-01	9.675570000000000
1998-01-01	19.398500000000000
1999-01-01	24.310400000000000
2000-01-01	19.383000000000000
2001-01-01	17.975100000000000
2002-01-01	16.511300000000000
2003-01-01	14.993900000000000
2004-01-01	10.466100000000000
2005-01-01	8.331170000000000
2006-01-01	8.169839999999999
2007-01-01	9.733330000000000
2008-01-01	19.758200000000000
2009-01-01	29.374300000000000
2010-01-01	22.161300000000000
2011-01-01	20.629800000000000
2012-01-01	21.099100000000000
2013-01-01	18.091800000000000
2014-01-01	17.214300000000000
2015-01-01	20.810700000000000
2016-01-01	22.295200000000000
2017-01-01	15.895500000000000