Year	Index 2010=1
1978-01-01	0.306962136804075
1979-01-01	0.301134560149362
1980-01-01	0.319804149557352
1981-01-01	0.358679504427030
1982-01-01	0.397398247373617
1983-01-01	0.410161716344514
1984-01-01	0.416253812289532
1985-01-01	0.436730996530760
1986-01-01	0.476311767116864
1987-01-01	0.519931540588110
1988-01-01	0.548914767823144
1989-01-01	0.532692009180690
1990-01-01	0.534290519225498
1991-01-01	0.534317370348305
1992-01-01	0.528766437626984
1993-01-01	0.526006088807880
1994-01-01	0.518209230607123
1995-01-01	0.520312805741816
1996-01-01	0.521976264272570
1997-01-01	0.538083911110896
1998-01-01	0.583324938737401
1999-01-01	0.614100837931978
2000-01-01	0.626755313615052
2001-01-01	0.642694464776687
2002-01-01	0.663014005642856
2003-01-01	0.664633430495610
2004-01-01	0.673618757650243
2005-01-01	0.702805179772268
2006-01-01	0.764391271158394
2007-01-01	0.841521286168054
2008-01-01	0.922056742075338
2009-01-01	0.957739211869239
2010-01-01	1.000000000000000