Year annual % growth 1961 1.246402557239648 1962 7.9912003363775455 1963 0.12375377675223831 1964 6.910677630942175 1965 7.92760427454111 1966 7.911845360302223 1967 5.324998206947498 1968 -9.579369016108245 1969 3.0178727065165845 1970 -9.524141799973961 1971 44.94270986810071 1972 13.1392007953135 1973 -6.5679784780574835 1974 14.95538806049521 1975 -1.9590134409604616 1976 -5.157859473830371 1977 8.502647517587846 1978 14.403986516804792 1979 4.010053592414835 1980 2.491268715273293 1981 -3.7417144873468686 1982 3.1588093003919795 1983 -3.257412153503495 1984 7.931722715241889 1985 -6.820668390731626 1986 19.013786197005686 1987 8.67383456064914 1988 8.49098922214506 1989 5.935957676245678 1990 -0.2902501180561927 1991 2.4026990708034646 1992 -1.020259571925635 1993 -1.5438654662327025 1994 1.8224156575582526 1995 14.000721542194754 1996 2.5987679338015397 1997 3.8210589400729873 1998 4.577682308699551 1999 4.098982232816368 2000 -0.38302277324500267 2001 4.147727346530289 2002 0.8433184292393463 2003 2.2026803086021545 2004 2.419947624080663 2005 6.466429691899009 2006 9.924871534759589 2007 5.295802853400119 2008 -1.519015165104662 2009 4.5890652740064155 2010 4.969696969696983 2011 4.94226327944574 2012 4.35739436619717 2013 6.199915647406158 2014 4.20969023034155 2015 5.799352134146346 2016 4.503865930641979 2017 4.910455988332046 2018 4.729757667615303 2019 5.00090160994786 2020 -1.5163570574192136 2021 6.188607465293387 2022 3.1255103605558787 2023 4.999995221188925