Year Percent Change at Annual Rate 1960-01-01 4.450990507623920 1961-01-01 2.963040923694240 1962-01-01 4.236494673433200 1963-01-01 3.440668850439330 1964-01-01 2.417271694289620 1965-01-01 2.627395063146640 1966-01-01 0.885475776428606 1967-01-01 2.527097364148430 1968-01-01 2.123526741439380 1969-01-01 1.596569535438410 1970-01-01 2.431443202579700 1971-01-01 2.156424527291500 1972-01-01 1.917085484318410 1973-01-01 2.821398831253140 1974-01-01 3.160575854429320 1975-01-01 1.896113099628990 1976-01-01 1.256197195260450 1977-01-01 1.443711419882980 1978-01-01 1.811706418909940 1979-01-01 5.465453784232680 1980-01-01 2.670080965234400 1981-01-01 2.348226768234500 1982-01-01 1.552496270392050 1983-01-01 1.519407906121990 1984-01-01 0.982973566854865 1985-01-01 1.074258771636350 1986-01-01 1.245826983208670 1987-01-01 1.006753152073660 1988-01-01 0.840468540728853 1989-01-01 1.035912320114590 1990-01-01 0.321315033221987 1991-01-01 0.829228336445851 1992-01-01 0.839650031457883 1993-01-01 1.717770734170720 1994-01-01 2.252030431117880 1995-01-01 1.980132777297480 1996-01-01 4.438607794811010 1997-01-01 0.832512854813318 1998-01-01 0.834808807338866 1999-01-01 0.955125814331738 2000-01-01 0.881594075853745 2001-01-01 0.736962668138432 2002-01-01 0.442846827281950 2003-01-01 -0.197404126472125 2004-01-01 0.779918562307180 2005-01-01 0.436871406105885 2006-01-01 0.642270482876128 2007-01-01 0.859633272217027 2008-01-01 0.598238786949717 2009-01-01 0.215353334344996 2010-01-01 0.734446396338105 2011-01-01 0.672543291818633 2012-01-01 1.103957997236800 2013-01-01 0.401982535858444 2014-01-01 0.702370950536049 2015-01-01 0.851197911086988 2016-01-01 0.619366345332479 2017-01-01 0.748222904999017