Year Growth Rate Previous Period 1968-01-01 2.466171521297200 1969-01-01 1.914510437229370 1970-01-01 4.308879409008820 1971-01-01 4.903972595041120 1972-01-01 5.209472526442340 1973-01-01 6.168645180459960 1974-01-01 9.564677022612240 1975-01-01 10.121635971474300 1976-01-01 9.567900125414810 1977-01-01 7.111055128782600 1978-01-01 3.546561941207290 1979-01-01 4.158897847424070 1980-01-01 5.833700718403610 1981-01-01 7.422760630569840 1982-01-01 8.837570559695280 1983-01-01 7.721536556131040 1984-01-01 6.327769613185860 1985-01-01 4.150596616621910 1986-01-01 2.450893159186260 1987-01-01 1.002084093190310 1988-01-01 1.828359870063080 1989-01-01 3.187394014821360 1990-01-01 3.122243244635920 1991-01-01 3.391083668163420 1992-01-01 4.281686708436030 1993-01-01 4.231898088025990 1994-01-01 2.626403548799880 1995-01-01 1.991760572089170 1996-01-01 0.938523571225028 1997-01-01 1.263481989397200 1998-01-01 1.089687884605200 1999-01-01 0.882315881166472 2000-01-01 2.219654600353060 2001-01-01 2.722034182215910 2002-01-01 1.886270438186550 2003-01-01 1.932694856729500 2004-01-01 1.928468171992550 2005-01-01 1.816210191113190 2006-01-01 2.060000000000000 2007-01-01 2.119668169050860 2008-01-01 1.991716506220620 2009-01-01 2.016321858904510 2010-01-01 1.577640992538280 2011-01-01 2.387580947769780 2012-01-01 2.091029998522240 2013-01-01 2.075703843091840 2014-01-01 1.306740027510330 2015-01-01 1.606256230733950 2016-01-01 0.951658736177194 2017-01-01 1.366979520071300