Year	Index 2010=1
1980-01-01	0.294617803375394
1981-01-01	0.331233352272891
1982-01-01	0.375822818998299
1983-01-01	0.414669709655537
1984-01-01	0.443300500659741
1985-01-01	0.468016641171507
1986-01-01	0.487336893335064
1987-01-01	0.510641855340758
1988-01-01	0.536755893120616
1989-01-01	0.560816665267176
1990-01-01	0.622667521316121
1991-01-01	0.653756504659825
1992-01-01	0.668485543927830
1993-01-01	0.676930754739017
1994-01-01	0.683525949033592
1995-01-01	0.699822508612759
1996-01-01	0.705279978890201
1997-01-01	0.721155673239206
1998-01-01	0.747819088102588
1999-01-01	0.774095952386887
2000-01-01	0.798855561541363
2001-01-01	0.843064152448610
2002-01-01	0.866955271374106
2003-01-01	0.867959999996496
2004-01-01	0.877285833563889
2005-01-01	0.896348470467132
2006-01-01	0.927616411264513
2007-01-01	0.951149583806680
2008-01-01	0.977259682222539
2009-01-01	0.971993498894202
2010-01-01	1.000000000000000