Year	Index 2010=1
1975-01-01	0.216210676179258
1976-01-01	0.252334413200890
1977-01-01	0.277202304084690
1978-01-01	0.286030087662201
1979-01-01	0.307724035530349
1980-01-01	0.349951351062520
1981-01-01	0.391671162772212
1982-01-01	0.421200488559553
1983-01-01	0.450540820401449
1984-01-01	0.482231146865280
1985-01-01	0.513155965486098
1986-01-01	0.533347684089705
1987-01-01	0.564717796605258
1988-01-01	0.609246235510568
1989-01-01	0.648077549637562
1990-01-01	0.701261261208252
1991-01-01	0.737516113958824
1992-01-01	0.736022178192716
1993-01-01	0.708973474282723
1994-01-01	0.689505160766105
1995-01-01	0.697825496071812
1996-01-01	0.697156322097841
1997-01-01	0.703420805463991
1998-01-01	0.715810250626211
1999-01-01	0.731261440407279
2000-01-01	0.751118583506442
2001-01-01	0.769646749652975
2002-01-01	0.790811814137180
2003-01-01	0.812073464175324
2004-01-01	0.803040952777310
2005-01-01	0.825345014011477
2006-01-01	0.850916268912744
2007-01-01	0.855564105073288
2008-01-01	0.916718444938109
2009-01-01	1.009027222911760
2010-01-01	1.000000000000000