Year	Index 2010=1
1981-01-01	0.348513622084989
1982-01-01	0.418202814477786
1983-01-01	0.474889346809302
1984-01-01	0.520521422994644
1985-01-01	0.567494970245984
1986-01-01	0.591144310421607
1987-01-01	0.612750963946812
1988-01-01	0.629023167608971
1989-01-01	0.663817560046057
1990-01-01	0.710363930613398
1991-01-01	0.768260671048972
1992-01-01	0.802310494250086
1993-01-01	0.792797546995249
1994-01-01	0.761939670327966
1995-01-01	0.768702332609187
1996-01-01	0.795008638631603
1997-01-01	0.803444970135722
1998-01-01	0.797232240759405
1999-01-01	0.822604111086366
2000-01-01	0.794532143673750
2001-01-01	0.806931013131685
2002-01-01	0.840104369976419
2003-01-01	0.875203044973637
2004-01-01	0.869520111016039
2005-01-01	0.896819179435762
2006-01-01	0.904682751738464
2007-01-01	0.920409060733649
2008-01-01	0.951319003969434
2009-01-01	1.007674775791570
2010-01-01	1.000000000000000