Year	Ratio
1984-01-01	0.968630015850067
1985-01-01	0.966650009155273
1986-01-01	0.987630009651184
1987-01-01	1.054780006408690
1988-01-01	1.094990015029910
1989-01-01	1.081750035285950
1992-01-01	1.040949940681460
1993-01-01	1.058279991149900
2000-01-01	1.100939989089970
2001-01-01	1.127169966697690
2002-01-01	1.126680016517640
2003-01-01	1.192080020904540
2004-01-01	1.143779993057250
2005-01-01	1.069069981575010
2007-01-01	1.004029989242550
2008-01-01	1.053679943084720
2009-01-01	1.075510025024410
2010-01-01	0.992039978504181
2011-01-01	1.038050055503850
2012-01-01	1.050670027732850
2013-01-01	1.180830001831050
2014-01-01	1.026980042457580
2015-01-01	1.054970026016240