Year Index 2010=1, Trend 1985-01-01 0.747622872435494 1986-01-01 0.680252021487744 1987-01-01 0.708081886111404 1988-01-01 0.681857742044902 1989-01-01 0.670930703086694 1990-01-01 0.668853863913299 1991-01-01 0.687370053582870 1992-01-01 0.694698162289809 1993-01-01 0.685931771312147 1994-01-01 0.668030735469093 1995-01-01 0.703292824605276 1996-01-01 0.697125561735728 1997-01-01 0.677941425734793 1998-01-01 0.649128650380167 1999-01-01 0.629698913041251 2000-01-01 0.627274778696631 2001-01-01 0.664194860825895 2002-01-01 0.665647233632985 2003-01-01 0.667799839932671 2004-01-01 0.672409419593563 2005-01-01 0.698063622713584 2006-01-01 0.747403457352160 2007-01-01 0.782267704962050 2008-01-01 0.859300621173674 2009-01-01 1.024751736599250 2010-01-01 1.000000000000000