Year annual % growth 1966 -9.802661497949757 1967 2.1720805231009876 1968 42.555334868143376 1969 0 1970 17.911072037272675 1971 2.666589078115919 1972 16.047279803748452 1973 6.384474868511887 1974 5.9989121079685646 1975 36.793245897960844 1976 -0.6883529577341392 1977 -6.945496538648769 1978 1.4935478014279369 1979 9.379894299704176 1980 -10.660762632173459 1981 9.881431813633242 1982 53.057666306407924 1983 -4.05405492916816 1984 2.816909548410692 1985 2.659929788772814 1986 8.164917866228194 1987 7.249173005005446 1988 4.055187324975648 1989 -0.9305885188289835 1990 4.002090428488387 1991 6.022002523125508 1992 -1.6766987109078144 1993 -1.9928533935507744 1994 15.246691010972071 1995 2.296836203429109 1996 4.51637345700513 1997 1.0144344005127408 1998 6.5750268777091065 1999 -14.642478969419344 2000 16.311929882854102 2001 13.415273990899763 2002 6.388406203137961 2003 0.19467598895634808 2004 9.443021710499693 2005 9.117975109318778 2006 14.022786069918425 2007 6.808861174382528 2008 -2.591808263213551 2009 6.447737478675933 2010 4.29810725395896 2011 7.767075786583973 2012 6.911848886285469 2013 6.041942306475704 2014 6.159146599313232 2015 11.81621304640268 2016 10.623954352850888 2017 13.336864789424155 2018 7.934106906842814 2019 12.42600164968863 2020 -9.049583429478417 2021 18.019869006015668 2022 8.0508181094594 2023 5.113766731531811