Year	Ratio
1993-01-01	0.965390026569366
1994-01-01	0.952589988708496
1995-01-01	1.013059973716740
1996-01-01	1.004430055618290
1997-01-01	1.085469961166380
1998-01-01	1.060179948806760
1999-01-01	1.172109961509700
2000-01-01	1.160549998283390
2001-01-01	1.147199988365170
2002-01-01	1.146499991416930
2003-01-01	1.180979967117310
2004-01-01	1.205379962921140
2005-01-01	1.213289976120000
2006-01-01	1.227849960327150
2007-01-01	1.225209951400760
2008-01-01	1.252550005912780
2009-01-01	1.273920059204100
2010-01-01	1.342110037803650
2011-01-01	1.399510025978090
2012-01-01	1.362990021705630
2013-01-01	1.351510047912600
2014-01-01	1.370830059051510
2015-01-01	1.354560017585750
2016-01-01	1.377269983291630