Year	Index 2010=1
1978-01-01	0.377090239014670
1979-01-01	0.413348766656282
1980-01-01	0.462743386135556
1981-01-01	0.518682285249502
1982-01-01	0.577225500839376
1983-01-01	0.625344441826840
1984-01-01	0.659817094753371
1985-01-01	0.683683601329638
1986-01-01	0.698960313034236
1987-01-01	0.708979948489571
1988-01-01	0.715580723628632
1989-01-01	0.726850357058234
1990-01-01	0.751341517565959
1991-01-01	0.773493895813600
1992-01-01	0.783726274179449
1993-01-01	0.797808144387064
1994-01-01	0.795091186554237
1995-01-01	0.800709480770842
1996-01-01	0.809893400913540
1997-01-01	0.809190022878740
1998-01-01	0.807093062513166
1999-01-01	0.813064223226257
2000-01-01	0.825906283709318
2001-01-01	0.846079023925571
2002-01-01	0.870426883339070
2003-01-01	0.886673526289511
2004-01-01	0.894670642842911
2005-01-01	0.910912976938269
2006-01-01	0.930489831367564
2007-01-01	0.942691917242909
2008-01-01	0.966455171994065
2009-01-01	0.992573726737068
2010-01-01	1.000000000000000