Year annual % growth 1961 -19.01826592784748 1962 4.544838082891829 1963 24.637766491794082 1964 9.302377962106462 1965 27.126917074047 1966 28.45188287727413 1967 24.755632888007796 1968 5.482778209459553 1969 8.66328645745864 1970 8.200985438549012 1971 19.641483554432554 1972 7.917496757421816 1973 -1.2565674215527451 1974 1.231493542433853 1975 6.081880948118041 1976 -6.5841502655012505 1977 9.5174731178314 1978 5.717830843641991 1979 27.484395446933036 1980 17.97003909122246 1981 9.442433246025047 1982 -23.29615426448464 1983 -26.03938670525551 1984 0.11834546371440524 1985 17.966903991665433 1986 -13.5145463317549 1987 -8.328471934641229 1988 3.281155468843693 1989 -23.04159285579783 1990 35.37047241524246 1991 26.253455443500854 1992 19.2881401826497 1993 8.338297289216513 1994 -11.908456501687638 1995 5.5061151558409875 1996 -10.46272859510745 1997 11.43522128371059 1998 9.877952823405622 1999 16.611566963401486 2000 -10.582553456297504 2001 13.446827802009409 2002 -3.442545938884251 2003 5.118192917035387 2004 -3.8017516322924365 2005 -4.408372583715661 2006 7.424462249517049 2007 30.302179826583682 2008 4.213806279801773 2009 4.741797402443467 2010 7.349621070436669 2011 -4.566596877496366 2012 11.362289463728231 2013 30.77100511119434 2014 14.691695892791174 2015 -0.9677731468014912 2016 3.303329060255038 2017 14.323232345898987 2018 4.838686171030801 2019 3.393947941261885 2020 -19.79280491100944 2021 16.79296884140112 2022 18.53159795259694 2023 8.699965084370518