Year	Index 2010=1
1975-01-01	0.142893588565264
1976-01-01	0.161506845435005
1977-01-01	0.171663768776987
1978-01-01	0.178491897447449
1979-01-01	0.197492223636882
1980-01-01	0.231157251246447
1981-01-01	0.253531483630029
1982-01-01	0.275830957903069
1983-01-01	0.299543819730361
1984-01-01	0.326906418878495
1985-01-01	0.355519580810168
1986-01-01	0.374254629421715
1987-01-01	0.418748307066076
1988-01-01	0.471472302620313
1989-01-01	0.515317434951844
1990-01-01	0.567345885300892
1991-01-01	0.590363039306056
1992-01-01	0.560624535335714
1993-01-01	0.531185744942022
1994-01-01	0.529338095555704
1995-01-01	0.548076253209220
1996-01-01	0.539952671685103
1997-01-01	0.545939813905416
1998-01-01	0.576194934012232
1999-01-01	0.608274623232890
2000-01-01	0.657284237909427
2001-01-01	0.705024439493689
2002-01-01	0.736383200627283
2003-01-01	0.774220820441954
2004-01-01	0.783933467347149
2005-01-01	0.814852235291470
2006-01-01	0.850471729056365
2007-01-01	0.878852246649859
2008-01-01	0.947662705929244
2009-01-01	0.977067421292990
2010-01-01	1.000000000000000