Year	Index 2010=1
1980-01-01	0.380305543808724
1981-01-01	0.422615980932108
1982-01-01	0.449296052585563
1983-01-01	0.467959477495045
1984-01-01	0.492607791777249
1985-01-01	0.504572691168425
1986-01-01	0.506080496468760
1987-01-01	0.502722274097632
1988-01-01	0.541732216074363
1989-01-01	0.604643337467740
1990-01-01	0.658147873704344
1991-01-01	0.709482175376476
1992-01-01	0.777096366399868
1993-01-01	0.773090516315937
1994-01-01	0.765972233036007
1995-01-01	0.766865381531336
1996-01-01	0.756938888247759
1997-01-01	0.762437161848013
1998-01-01	0.792226462468491
1999-01-01	0.798486855451046
2000-01-01	0.811924843850501
2001-01-01	0.842181521147053
2002-01-01	0.847015944939025
2003-01-01	0.858893287196201
2004-01-01	0.850408661226216
2005-01-01	0.850670826129124
2006-01-01	0.859398040490536
2007-01-01	0.878897356724088
2008-01-01	0.928721776003663
2009-01-01	0.981797838115905
2010-01-01	1.000000000000000