Year	Ratio
1990-01-01	1.24433004856110
1991-01-01	1.21875000000000
1992-01-01	1.22014999389648
1993-01-01	1.20605003833771
1994-01-01	1.19104003906250
1995-01-01	1.16317999362946
1996-01-01	1.15638005733490
1997-01-01	1.13845002651215
1998-01-01	1.14041996002197
1999-01-01	1.10632002353668
2000-01-01	1.11108994483948
2001-01-01	1.11974000930786
2002-01-01	1.10010004043579
2003-01-01	1.10608994960785
2004-01-01	1.11081004142761
2005-01-01	1.11720001697540
2006-01-01	1.14051997661591
2007-01-01	1.14815998077393