Year	Index 2010=1
1981-01-01	0.295079722855677
1982-01-01	0.343046537637674
1983-01-01	0.395657659808257
1984-01-01	0.428955781257125
1985-01-01	0.462481529168878
1986-01-01	0.485782051506186
1987-01-01	0.510373828176947
1988-01-01	0.537056933750225
1989-01-01	0.565201803387477
1990-01-01	0.617726961759101
1991-01-01	0.665542819603241
1992-01-01	0.692846772224067
1993-01-01	0.701893330006423
1994-01-01	0.699431492395708
1995-01-01	0.709448556187997
1996-01-01	0.744074739866332
1997-01-01	0.766046850941029
1998-01-01	0.751889061417636
1999-01-01	0.764569663571834
2000-01-01	0.762003560639104
2001-01-01	0.787300007766593
2002-01-01	0.813704170358709
2003-01-01	0.849682140253237
2004-01-01	0.862464284520656
2005-01-01	0.888827063415132
2006-01-01	0.904710264651125
2007-01-01	0.924288445611586
2008-01-01	0.961286980187710
2009-01-01	1.001989761435110
2010-01-01	1.000000000000000