Year Percent Change from Year Ago 1989-01-01 1.478546757540490 1990-01-01 1.062948772785600 1991-01-01 -2.167472602678050 1992-01-01 0.823791465704501 1993-01-01 4.937054382457380 1994-01-01 6.676990265078690 1995-01-01 4.345060429612970 1996-01-01 3.742086752637740 1997-01-01 2.973526797149270 1998-01-01 0.785016644108702 1999-01-01 4.460720974462480 2000-01-01 4.081916290834810 2001-01-01 2.201940217790440 2002-01-01 5.083129185040000 2003-01-01 4.613443079524550 2004-01-01 4.404048087379730 2005-01-01 2.557374436501080 2006-01-01 2.752787474816980 2007-01-01 3.947801945544210 2008-01-01 -0.421927773447641 2009-01-01 0.343877519072419 2010-01-01 1.976109871708860 2011-01-01 1.901609917540810 2012-01-01 2.561228268593690 2013-01-01 2.212311655866950 2014-01-01 3.262395096382450 2015-01-01 4.238322423166530 2016-01-01 4.129856306546030 2017-01-01 2.709206446556970