Year Growth Rate Previous Period 1971-01-01 10.63603832390630 1972-01-01 14.26067359459120 1973-01-01 15.79237476673370 1974-01-01 25.07384190090560 1975-01-01 15.01301142942300 1976-01-01 18.75048591107080 1977-01-01 17.08133706231720 1978-01-01 15.07699873753760 1979-01-01 19.36411701712120 1980-01-01 16.86588025055920 1981-01-01 13.50876879585920 1982-01-01 4.34048071411122 1983-01-01 2.15807100910331 1984-01-01 3.94850197288530 1985-01-01 6.88391181888811 1986-01-01 8.24934577911672 1987-01-01 10.92567472179420 1988-01-01 8.95686120441126 1989-01-01 12.24240531320190 1990-01-01 10.55482344264500 1991-01-01 6.38211273142271 1992-01-01 4.92692063324743 1993-01-01 4.40735008103874 1994-01-01 4.14471180952270 1995-01-01 5.06578788752948 1996-01-01 5.51332183517754 1997-01-01 4.80752282139566 1998-01-01 3.63956103019876 1999-01-01 3.71930315832949 2000-01-01 7.93090749751684 2001-01-01 4.81667093371581 2002-01-01 5.94356796406130 2003-01-01 5.96411276207433 2004-01-01 9.04147982003201 2005-01-01 9.82288290483732 2006-01-01 7.46712253321920 2007-01-01 10.94611006930690 2008-01-01 11.81010791211330 2009-01-01 3.22381807141640 2010-01-01 5.43925516724304 2011-01-01 7.34927716746231 2012-01-01 6.71003777211316 2013-01-01 6.54181641469836 2014-01-01 8.26519025644638 2015-01-01 7.45004547475811 2016-01-01 8.62320063550943 2017-01-01 6.20689884962053