Year Growth Rate Previous Period 1960-01-01 7.965572961484240 1961-01-01 8.195643995023220 1962-01-01 6.618312341791360 1963-01-01 20.691641785600500 1964-01-01 29.462823238823900 1965-01-01 13.548195729881100 1966-01-01 11.261388373780500 1967-01-01 10.882443522527600 1968-01-01 10.771819756233000 1969-01-01 12.389563267894800 1970-01-01 15.950340555650300 1971-01-01 13.511708713908900 1972-01-01 11.688985053494400 1973-01-01 3.221025943185670 1974-01-01 24.304198162979300 1975-01-01 25.249264209625500 1976-01-01 15.327311512565800 1977-01-01 10.096674903541800 1978-01-01 14.460282459179900 1979-01-01 18.323490625537600 1980-01-01 28.697601695353300 1981-01-01 21.351653923581600 1982-01-01 7.190845757971900 1983-01-01 3.420607782143220 1984-01-01 2.273957062197500 1985-01-01 2.459110604332950 1986-01-01 2.749980413244940 1987-01-01 3.049659647031090 1988-01-01 7.146100368959000 1989-01-01 5.700160090403990 1990-01-01 8.573598954453670 1991-01-01 9.333360724777600 1992-01-01 6.212678644574810 1993-01-01 4.801102489801270 1994-01-01 6.265814771988750 1995-01-01 4.480686995253540 1996-01-01 4.924809686634830 1997-01-01 4.439063761097630 1998-01-01 7.513340122482200 1999-01-01 0.812996589285716 2000-01-01 2.259184778504140 2001-01-01 4.066419647998420 2002-01-01 2.762511352086070 2003-01-01 3.514879241868590 2004-01-01 3.590591390858040 2005-01-01 2.754090200547520 2006-01-01 2.241847104391520 2007-01-01 2.534846871184730 2008-01-01 4.673795956916210 2009-01-01 2.756686477375810 2010-01-01 2.939181359276000 2011-01-01 4.025846249593840 2012-01-01 2.187221208479300 2013-01-01 1.301377057536120 2014-01-01 1.274714702055200 2015-01-01 0.706208169859218 2016-01-01 0.971674763956370 2017-01-01 1.944455907233940