Year annual % growth 1971 6.057439669144699 1972 6.180693765853945 1973 6.933272554537993 1974 -3.785387770789555 1975 -3.8638402350492527 1976 4.114990967115901 1977 5.219910037394214 1978 6.339760282761887 1979 5.061846517313654 1980 -0.128163354266718 1981 0.1379283471123216 1982 -2.2606719407589253 1983 2.6392006035650866 1984 6.489176170188358 1985 4.901647912392221 1986 4.398502814034259 1987 5.1262306500467645 1988 7.259484697997465 1989 5.845629149674437 1990 3.345533733792678 1991 -1.7020989380101383 1992 -2.348113141230087 1993 -1.9174193360874057 1994 2.9047686418988405 1995 4.432136904303846 1996 5.200090599528323 1997 3.5368303981981626 1998 3.866445929815484 1999 4.883933583727824 2000 5.281623881839792 2001 -0.0009725604178214553 2002 -0.9904483990338235 2003 2.9281300228058456 2004 4.504989265265053 2005 4.985787934485359 2006 4.37553874450667 2007 3.2966964908307546 2008 -1.2723140766733678 2009 -10.320559029741474 2010 1.989528638926231 2011 3.6622592785494135 2012 3.1645462342757753 2013 2.1278928763400273 2014 3.5520124693768906 2015 3.0858075365729007 2016 2.292217193616807 2017 3.6020179093268325 2018 3.1879771532774583 2019 3.0441155492332257 2020 -3.1945685078482455 2021 4.9009733808472475 2022 2.1247170015842727