Year	Index 2010=1, Trend
1971-01-01	0.150551780342665
1972-01-01	0.161801496635704
1973-01-01	0.177530478759893
1974-01-01	0.216385228309276
1975-01-01	0.265666230291475
1976-01-01	0.294133361749210
1977-01-01	0.313234444980570
1978-01-01	0.330163183267372
1979-01-01	0.348655940617227
1980-01-01	0.375313887987975
1981-01-01	0.397202876011858
1982-01-01	0.469727830054294
1983-01-01	0.530152057486715
1984-01-01	0.541454241881104
1985-01-01	0.568719824163727
1986-01-01	0.624937265612011
1987-01-01	0.657491539003302
1988-01-01	0.686219400858710
1989-01-01	0.737359376643187
1990-01-01	0.800974973668318
1991-01-01	0.820128742572683
1992-01-01	0.824227654701557
1993-01-01	0.819345350805272
1994-01-01	0.800244949400993
1995-01-01	0.800524781465109
1996-01-01	0.814825352362862
1997-01-01	0.832368987938242
1998-01-01	0.811701565093833
1999-01-01	0.825562197709941
2000-01-01	0.840005529027512
2001-01-01	0.862180386480574
2002-01-01	0.837683730354077
2003-01-01	0.841549724737424
2004-01-01	0.850191840538446
2005-01-01	0.861837165155244
2006-01-01	0.881138486378968
2007-01-01	0.920120405309556
2008-01-01	0.958964386809764
2009-01-01	0.982230224952787
2010-01-01	1.000000000000000