Year Growth Rate Previous Period 1971-01-01 11.15911538385760 1972-01-01 11.79602909496450 1973-01-01 13.82675354918890 1974-01-01 8.11743246995931 1975-01-01 8.44326312037090 1976-01-01 9.13277851587841 1977-01-01 8.98519892840452 1978-01-01 10.70258255380010 1979-01-01 11.66849437175900 1980-01-01 9.17671723100685 1981-01-01 9.42342078507158 1982-01-01 9.90013829715475 1983-01-01 12.90489201287430 1984-01-01 10.04477488955740 1985-01-01 13.89692255896970 1986-01-01 16.13884937085380 1987-01-01 18.94025155676080 1988-01-01 14.31646780560140 1989-01-01 7.88841279141656 1990-01-01 9.60794981360348 1991-01-01 11.14700157592670 1992-01-01 15.11788162027480 1993-01-01 12.25784136044860 1994-01-01 9.83687757199564 1995-01-01 5.51929266556917 1996-01-01 7.73468897295872 1997-01-01 8.91981750262143 1998-01-01 8.14600170239977 1999-01-01 9.80401910325554 2000-01-01 8.39659439598652 2001-01-01 8.21623664657382 2002-01-01 10.83410894003660 2003-01-01 9.05019262777449 2004-01-01 8.40071764020940 2005-01-01 7.81033068948858 2006-01-01 6.73362549617896 2007-01-01 4.13355501956778 2008-01-01 4.63998294867668 2009-01-01 10.70614234622170 2010-01-01 7.64711212319318 2011-01-01 8.78618676209850 2012-01-01 8.60302956929796 2013-01-01 8.77289874091402