Year	Ratio
2000-01-01	1.24670004844666
2001-01-01	1.31947004795074
2002-01-01	1.33009004592896
2003-01-01	1.29044997692108
2004-01-01	1.41224002838135
2005-01-01	1.39884996414185
2006-01-01	1.32849001884460
2007-01-01	1.30631995201111
2008-01-01	1.29063999652863
2009-01-01	1.23839998245239
2010-01-01	1.21928000450134
2011-01-01	1.18578004837036
2012-01-01	1.18167996406555
2013-01-01	1.13269996643066
2014-01-01	1.13993000984192
2015-01-01	1.19155001640320
2016-01-01	1.26877999305725