Year	Index
2000-01-01	21.2183
2001-01-01	22.1167
2002-01-01	21.1392
2003-01-01	20.0926
2004-01-01	14.6119
2005-01-01	11.0531
2006-01-01	13.0383
2007-01-01	15.2637
2008-01-01	23.8539
2009-01-01	37.9071
2010-01-01	28.8420
2011-01-01	20.4925
2012-01-01	21.1690
2013-01-01	16.5943
2014-01-01	13.8598
2015-01-01	16.6716
2016-01-01	23.0941
2017-01-01	20.5063