Year	Index 2015=100
1997-01-01	30.4289402516239
1998-01-01	30.0950314291354
1999-01-01	29.0201367989041
2000-01-01	30.9377008575612
2001-01-01	36.7984752240610
2002-01-01	38.9179360277186
2003-01-01	42.0222288665824
2004-01-01	51.0961651690956
2005-01-01	58.9212396202275
2006-01-01	70.4323884877599
2007-01-01	77.0839332434844
2008-01-01	79.8342737858165
2009-01-01	64.8521902059734
2010-01-01	74.3978982573330
2011-01-01	81.5716149987459
2012-01-01	83.6427348265934
2013-01-01	88.3339140307913
2014-01-01	92.5508956624943
2015-01-01	100.0000000000000
2016-01-01	103.4151846426850
2017-01-01	108.9215396637590