Year Percent Change at Annual Rate 1961-01-01 -0.0469028505460756 1962-01-01 1.3327845987572600 1963-01-01 2.5617429448799000 1964-01-01 2.4591334126502300 1965-01-01 2.5064200060696500 1966-01-01 2.8120227651950400 1967-01-01 2.6461577331181200 1968-01-01 2.6722364654599600 1969-01-01 2.7635694505639400 1970-01-01 2.7724349435088700 1971-01-01 2.7546992529049800 1972-01-01 2.5290226162421000 1973-01-01 2.3855476120981900 1974-01-01 2.2037810784437300 1975-01-01 1.9583454616498800 1976-01-01 1.7720219335670000 1977-01-01 1.6158944157479600 1978-01-01 1.5877847265341800 1979-01-01 1.5865765270231300 1980-01-01 1.5376430581648300 1981-01-01 1.5686018358947100 1982-01-01 1.7156619208725800 1983-01-01 1.6963792132131500 1984-01-01 1.5932341022741200 1985-01-01 1.6173670828069800 1986-01-01 1.6952368554559600 1987-01-01 1.7663193466355000 1988-01-01 1.7558483191789400 1989-01-01 1.6833895075466900 1990-01-01 1.6179285879688900 1991-01-01 1.5253795781895700 1992-01-01 1.4077804656660500 1993-01-01 1.3370524147975500 1994-01-01 1.3088313442924400 1995-01-01 1.2647947542866000 1996-01-01 1.2251861375677200 1997-01-01 1.1952783446493200 1998-01-01 1.1380045444220200 1999-01-01 1.0601226153185800 2000-01-01 0.9939772724747230 2001-01-01 0.9404159030132180 2002-01-01 0.8913718027380780 2003-01-01 0.8488981328199400 2004-01-01 0.8189864757996330 2005-01-01 0.8054002253059740 2006-01-01 0.7746921760038110 2007-01-01 0.7409373955513270 2008-01-01 0.7293615462685070 2009-01-01 0.7193959679613040 2010-01-01 0.7131639477492940 2011-01-01 0.7156999176874310 2012-01-01 0.7245069209644160 2013-01-01 0.7280287299730620 2014-01-01 0.7298573592219240 2015-01-01 0.7201057842848680 2016-01-01 0.7303856771779780 2017-01-01 0.7309819991614860