Year	Index 2010=1, Trend
1970-01-01	0.378093544544013
1971-01-01	0.411383225172952
1972-01-01	0.437411403835981
1973-01-01	0.469387608096271
1974-01-01	0.511939653856296
1975-01-01	0.544703871354457
1976-01-01	0.556527302190910
1977-01-01	0.575969381961141
1978-01-01	0.597226581601119
1979-01-01	0.630162071265423
1980-01-01	0.670042206126100
1981-01-01	0.700732460289938
1982-01-01	0.731266827504596
1983-01-01	0.737159397883149
1984-01-01	0.742862873424729
1985-01-01	0.749211659865347
1986-01-01	0.773385298032925
1987-01-01	0.796012114995921
1988-01-01	0.799579935120082
1989-01-01	0.803694449675397
1990-01-01	0.823404746896313
1991-01-01	0.853438247414493
1992-01-01	0.917979347427901
1993-01-01	0.959501602740263
1994-01-01	0.961138321239611
1995-01-01	0.979543635971266
1996-01-01	0.987558933033477
1997-01-01	0.970483331789964
1998-01-01	0.970280122963536
1999-01-01	0.975502363625486
2000-01-01	0.975038545004469
2001-01-01	0.980248982042060
2002-01-01	0.984194431494227
2003-01-01	0.986833730531726
2004-01-01	0.973333352842932
2005-01-01	0.961631027749674
2006-01-01	0.942545665088236
2007-01-01	0.935786657846335
2008-01-01	0.956975916305681
2009-01-01	0.991546250759502
2010-01-01	1.000000000000000