Year Index 2010=1, Trend 1985-01-01 0.318714816788320 1986-01-01 0.343272409628009 1987-01-01 0.362118380917250 1988-01-01 0.362214370741486 1989-01-01 0.394963371141416 1990-01-01 0.427534626832241 1991-01-01 0.443436343190736 1992-01-01 0.471652033899552 1993-01-01 0.496945908793473 1994-01-01 0.546248511990432 1995-01-01 0.561534538766592 1996-01-01 0.611930055439939 1997-01-01 0.629341602280326 1998-01-01 0.652526799003638 1999-01-01 0.679240544841128 2000-01-01 0.745372173357540 2001-01-01 0.813551935476308 2002-01-01 0.833774277561272 2003-01-01 0.810317625173714 2004-01-01 0.817396825290105 2005-01-01 0.826773994986237 2006-01-01 0.832165586241746 2007-01-01 0.858425800856308 2008-01-01 0.931486935626708 2009-01-01 0.980113019820649 2010-01-01 1.000000000000000