Annual Index 2010=1, Trend
1983-01-01 0.389456926347166
1984-01-01 0.423769968964506
1985-01-01 0.453485386793396
1986-01-01 0.466940606695772
1987-01-01 0.505984559196612
1988-01-01 0.561243057434834
1989-01-01 0.598258191043861
1990-01-01 0.624547401367766
1991-01-01 0.648192552186439
1992-01-01 0.658844562050687
1993-01-01 0.665266153932491
1994-01-01 0.657114035549150
1995-01-01 0.665954614415007
1996-01-01 0.708343851404573
1997-01-01 0.746220772017428
1998-01-01 0.775510723765157
1999-01-01 0.790624219173591
2000-01-01 0.843992612887745
2001-01-01 0.854215087648552
2002-01-01 0.845324930479367
2003-01-01 0.867756383592066
2004-01-01 0.897465078567715
2005-01-01 0.924763706431486
2006-01-01 0.956196277281116
2007-01-01 0.985155263466871
2008-01-01 0.989203781986047
2009-01-01 0.982501213976423
2010-01-01 1.000000000000000