Year Percent Change at Annual Rate 1960-01-01 1.360606337320780 1961-01-01 2.477477477477490 1962-01-01 2.417582417582430 1963-01-01 2.360515021459220 1964-01-01 2.515723270440250 1965-01-01 2.453987730061360 1966-01-01 1.796407185628750 1967-01-01 1.960784313725480 1968-01-01 1.923076923076920 1969-01-01 1.886792452830190 1970-01-01 1.851851851851860 1971-01-01 -0.727272727272721 1972-01-01 -0.732600732600730 1973-01-01 -0.738007380073813 1974-01-01 -0.743494423791824 1975-01-01 -0.749063670411987 1976-01-01 0.377358490566038 1977-01-01 0.375939849624052 1978-01-01 0.374531835205993 1979-01-01 0.373134328358193 1980-01-01 1.617100371747230 1981-01-01 0.695079568319001 1982-01-01 0.724795640326970 1983-01-01 0.867463795559886 1984-01-01 0.881458966565352 1985-01-01 0.841855271786329 1986-01-01 0.850645013884477 1987-01-01 0.813844062598035 1988-01-01 0.860861899082099 1989-01-01 0.846658782799459 1990-01-01 0.824255196206725 1991-01-01 -0.514108485318410 1992-01-01 -0.721776994629031 1993-01-01 0.537588531444655 1994-01-01 0.695976913936525 1995-01-01 0.718138907619692 1996-01-01 0.641047099387393 1997-01-01 0.612017495717554 1998-01-01 0.737226639337485 1999-01-01 0.561180119127713 2000-01-01 0.894182915884811 2001-01-01 1.085181052188950 2002-01-01 0.652758223473704 2003-01-01 0.656472533062069 2004-01-01 0.655349388077386 2005-01-01 0.649513649199873 2006-01-01 0.575178476790228 2007-01-01 0.565689754041210 2008-01-01 0.593330045617058 2009-01-01 0.556125810059283 2010-01-01 -0.780059723322568 2011-01-01 -0.859898040660900 2012-01-01 0.362431076141512 2013-01-01 0.313281274113408 2014-01-01 0.212304426085730 2015-01-01 0.153517861803243 2016-01-01 0.156348196630840 2017-01-01 0.153043265331121