Year annual % growth 1969 5.660994762537612 1970 -1.067661978735842 1971 3.938257357184071 1972 5.690492713393482 1973 5.699277741300051 1974 4.808050689526652 1975 6.804172593646271 1976 7.669256381798007 1977 54.32429646428204 1978 -12.090040745441186 1979 -13.053719322239957 1980 12.889976404788953 1981 4.582752748103431 1982 7.690599555884532 1983 8.859715444360432 1984 19.314307362040665 1985 18.330952002963443 1986 15.008273333035206 1987 16.49492553563789 1988 10.928268633799519 1989 7.074293623807677 1990 2.849595323740999 1991 2.9619104869118615 1992 6.032057746404121 1993 3.501439119008893 1994 -2.2005126469023537 1995 1.4365542478488749 1996 -0.5313833028641142 1997 3.4969490528585823 1998 1.067860017994974 1999 2.1272109640388948 2000 3.9845846810267602 2001 0.28237370394880656 2002 1.2033085485503108 2003 0.8868601238995808 2004 3.4688557085299294 2005 0.7933698436166026 2006 1.1176762251053702 2007 1.9327816937378657 2008 1.2507265839530248 2009 1.2590319707017557 2010 10.033039432269163 2011 5.232485830534969 2012 3.155602080097239 2013 4.484671915151324 2014 5.1208546767548455 2015 4.595714243137721 2016 5.2842285225815715 2017 4.378949647491837 2018 2.13781033253386 2019 2.1362205523964235 2020 -1.6056271515031 2021 2.177455004736345 2022 4.022299410375908 2023 4.132948320321319