Year	Index 2010=1
1980-01-01	0.453326139652333
1981-01-01	0.506643775436398
1982-01-01	0.568706789793147
1983-01-01	0.616836882536991
1984-01-01	0.652940860682165
1985-01-01	0.689383874371860
1986-01-01	0.704913675259861
1987-01-01	0.727393357513991
1988-01-01	0.737121167259243
1989-01-01	0.748032722542013
1990-01-01	0.778966420838721
1991-01-01	0.797760468530940
1992-01-01	0.817829684615079
1993-01-01	0.835004306781312
1994-01-01	0.826745744889278
1995-01-01	0.823883192686710
1996-01-01	0.832660365223047
1997-01-01	0.824123419873217
1998-01-01	0.816276759492342
1999-01-01	0.819573833521100
2000-01-01	0.830050421652744
2001-01-01	0.847260956183964
2002-01-01	0.869902034152890
2003-01-01	0.879056797199488
2004-01-01	0.893419126213791
2005-01-01	0.906514985998226
2006-01-01	0.925880118416755
2007-01-01	0.936374439455204
2008-01-01	0.967520807450904
2009-01-01	0.998641122345167
2010-01-01	1.000000000000000