Year	Ratio
1993-01-01	0.994560003280640
1994-01-01	1.001070022583010
1995-01-01	0.999570012092590
1996-01-01	1.000990033149720
1997-01-01	0.993809998035431
1998-01-01	0.995790004730225
1999-01-01	0.991840004920959
2000-01-01	1.021350026130680
2001-01-01	0.992770016193390
2002-01-01	0.989759981632233
2003-01-01	0.990629971027374
2004-01-01	0.992070019245148
2005-01-01	0.983099997043610
2006-01-01	0.984820008277893
2007-01-01	0.983229994773865
2008-01-01	0.986109972000122
2009-01-01	0.987959980964661
2010-01-01	0.990649998188019
2011-01-01	0.997070014476776
2012-01-01	1.000699996948240
2013-01-01	1.002509951591490
2014-01-01	1.001000046730040
2015-01-01	1.003980040550230