Year annual % growth 1961 12.526890311583955 1962 10.546461500405215 1963 16.17131822724332 1964 20.02642549807902 1965 16.424110657547402 1966 1.0558406904954722 1967 5.691195699855427 1968 11.219281364211838 1969 14.230463710876023 1970 6.358261439904396 1971 7.885042844073567 1972 14.29960830345847 1973 33.63290118731089 1974 -14.921571919322332 1975 1.4763180096667696 1976 9.588131534513394 1977 10.114657114412353 1978 4.534665933595733 1979 9.723165905236627 1980 9.336090842099324 1981 6.4598249517908215 1982 -2.6059924734292963 1983 2.5748534781435666 1984 -2.1224747428421438 1985 4.430498705753607 1986 13.877287067418138 1987 2.140082490335729 1988 7.335631067346156 1989 10.47205701817174 1990 8.36608326875124 1991 5.836823011966047 1992 1.0767362217805783 1993 0.628097422294772 1994 1.5002785092508049 1995 8.945002013356415 1996 9.936284981599513 1997 8.43779136486856 1998 18.161829327238337 1999 14.486267534620197 2000 20.180106472344647 2001 0.991433048760598 2002 -3.4321863741803753 2003 7.393443017743365 2004 4.41760346846678 2005 0.854104892721864 2006 13.309780969975222 2007 15.49941972441313 2008 1.3207122891903964 2009 -20.3539140519063 2010 -3.43061063827372 2011 -9.594901235506953 2012 -5.511402347170957 2013 -3.477623639209739 2014 6.7460200096981 2015 7.850899386901062 2016 2.155816725664124 2017 7.374129383703803 2018 8.099445618896112 2019 2.9008604038660764 2020 -7.282900278239509 2021 17.857439891126404 2022 7.2184107163141675 2023 2.1266642262186934