Year Index 2010=1 1987-01-01 0.418635523156201 1988-01-01 0.406582081787210 1989-01-01 0.411299805768998 1990-01-01 0.441034184857450 1991-01-01 0.456894807404095 1992-01-01 0.484659206959611 1993-01-01 0.505457550112730 1994-01-01 0.510030567359875 1995-01-01 0.522160736499210 1996-01-01 0.553412348630711 1997-01-01 0.577590434713298 1998-01-01 0.600738466889483 1999-01-01 0.617428211007148 2000-01-01 0.640400783311582 2001-01-01 0.677080938801635 2002-01-01 0.729868467092311 2003-01-01 0.775385285481555 2004-01-01 0.823620526963176 2005-01-01 0.812919216946444 2006-01-01 0.834607557567186 2007-01-01 0.825572131469711 2008-01-01 0.839838498072694 2009-01-01 0.908178430152868 2010-01-01 1.000000000000000