Year	Index 2010=1
1980-01-01	0.453733790308979
1981-01-01	0.507462498881144
1982-01-01	0.568572204364936
1983-01-01	0.616637225102284
1984-01-01	0.653380081960494
1985-01-01	0.689663480303081
1986-01-01	0.705433230424236
1987-01-01	0.727125085950707
1988-01-01	0.736774713807088
1989-01-01	0.748008613471575
1990-01-01	0.778848034667635
1991-01-01	0.797877586168739
1992-01-01	0.818072736581995
1993-01-01	0.834892720025775
1994-01-01	0.826681587169337
1995-01-01	0.824091564512999
1996-01-01	0.832143091026651
1997-01-01	0.823287458269848
1998-01-01	0.815845310733078
1999-01-01	0.819050116697965
2000-01-01	0.829696787334466
2001-01-01	0.847879791568714
2002-01-01	0.870578134357136
2003-01-01	0.879488548451509
2004-01-01	0.893323104252134
2005-01-01	0.906423841300724
2006-01-01	0.926184592801106
2007-01-01	0.937128468892611
2008-01-01	0.968194914448428
2009-01-01	0.998711798329022
2010-01-01	1.000000000000000