Year Growth Rate Previous Period 1960-01-01 15.108200187462900 1961-01-01 12.918233106493100 1962-01-01 4.392070987166860 1963-01-01 11.668920178568400 1964-01-01 17.376579583988800 1965-01-01 6.235616223644220 1966-01-01 7.288405053927980 1967-01-01 4.516434518742280 1968-01-01 10.434595017561800 1969-01-01 18.812174739558300 1970-01-01 22.131988873678000 1971-01-01 14.719758385473400 1972-01-01 13.667455490819000 1973-01-01 41.228531163889300 1974-01-01 36.093025224790000 1975-01-01 5.236569409303640 1976-01-01 14.223232572538900 1977-01-01 15.125348414936800 1978-01-01 15.558708724569800 1979-01-01 26.477291696308800 1980-01-01 14.085650347278500 1981-01-01 -13.750642122708100 1982-01-01 -4.225526734063320 1983-01-01 -5.310696877464980 1984-01-01 2.052431015365140 1985-01-01 4.835281038526540 1986-01-01 16.112608052943200 1987-01-01 21.055206506352200 1988-01-01 8.375320402125910 1989-01-01 5.384738766067330 1990-01-01 21.137431628508000 1991-01-01 0.328414346787198 1992-01-01 5.596446508067710 1993-01-01 -7.326238723911280 1994-01-01 13.987753968677000 1995-01-01 22.966162022931900 1996-01-01 12.761033478559500 1997-01-01 -3.125197760409780 1998-01-01 1.969813221259430 1999-01-01 5.873715527900090 2000-01-01 5.948656289569290 2001-01-01 -3.980177332759510 2002-01-01 4.771163827723650 2003-01-01 21.010090983341500 2004-01-01 19.896948253318200 2005-01-01 14.163424125400900 2006-01-01 15.350407715982400 2007-01-01 17.964568971115600 2008-01-01 17.404317458649600 2009-01-01 -23.473578654466300 2010-01-01 15.392059812611200 2011-01-01 16.282850369219100 2012-01-01 -1.616941050019040 2013-01-01 0.700910090923424 2014-01-01 0.159072929413305 2015-01-01 -13.135148434583500 2016-01-01 -2.567924235854560 2017-01-01 15.473561652357500