Year	Ratio
1989-01-01	0.994159996509552
1990-01-01	1.005980014801030
1991-01-01	1.118250012397770
1992-01-01	1.074399948120120
1993-01-01	1.121379971504210
1994-01-01	1.171939969062810
1995-01-01	1.231310009956360
1996-01-01	1.250869989395140
1997-01-01	1.255560040473940
1998-01-01	1.263450026512150
1999-01-01	1.292269945144650
2000-01-01	1.291180014610290
2001-01-01	1.332679986953740
2002-01-01	1.302299976348880
2003-01-01	1.353049993515010
2004-01-01	1.401690006256100
2005-01-01	1.382529973983760
2006-01-01	1.380259990692140
2007-01-01	1.262240052223210
2008-01-01	1.196089982986450
2009-01-01	1.182000041008000
2010-01-01	1.164160013198850
2012-01-01	1.195770025253300
2013-01-01	1.260609984397890
2014-01-01	1.258559942245480
2015-01-01	1.250769972801210