Year	Index
1989-01-01	16.7073
1990-01-01	19.0111
1991-01-01	21.2622
1992-01-01	15.6814
1993-01-01	13.0749
1994-01-01	14.3052
1995-01-01	14.1849
1996-01-01	12.0437
1997-01-01	14.5014
1998-01-01	21.1053
1999-01-01	26.1372
2000-01-01	18.3004
2001-01-01	16.9268
2002-01-01	24.3028
2003-01-01	29.5871
2004-01-01	19.0238
2005-01-01	11.4873
2006-01-01	11.1426
2007-01-01	13.5166
2008-01-01	21.3778
2009-01-01	31.8687
2010-01-01	20.4285
2011-01-01	16.2700
2012-01-01	18.7172
2013-01-01	13.4098
2014-01-01	12.7502
2015-01-01	16.4914
2016-01-01	19.4592
2017-01-01	13.7647