Year annual % growth 1961 0.9152840878568327 1962 5.5560741010409345 1963 11.366907534195335 1964 20.25510393427055 1965 54.42233512336628 1966 8.809732199450096 1967 11.474560780897946 1968 9.58119735538014 1969 7.083505071346124 1970 7.842144031273747 1971 -2.7362082018878624 1972 13.151523844445848 1973 14.968503048865017 1974 8.270719356659441 1975 9.457624327235365 1976 -0.43347896962404775 1977 -7.167262221034633 1978 16.33346800001479 1979 19.888002938681538 1980 17.436626588100495 1981 16.229952564030413 1982 -16.791371099161182 1983 -28.282144108613267 1984 6.431967693284761 1985 7.851656922253937 1986 -11.802422898142979 1987 -0.12223759273963708 1988 5.784405298659308 1989 6.390622616751074 1990 13.126717036948165 1991 8.307404314572906 1992 10.849001516418213 1993 -1.2431521278018494 1994 13.159495260666404 1995 -33.89549761400103 1996 18.571628523516722 1997 15.436674073087573 1998 10.680510255888606 1999 4.554711312387923 2000 4.91848643306605 2001 -6.85144059744573 2002 -0.555421748209767 2003 1.7492228286052551 2004 6.629335636004939 2005 4.9460008261216615 2006 9.556610830271978 2007 6.999100794740173 2008 6.531007910805812 2009 -11.925690251423475 2010 6.2306886435661255 2011 8.688101344586968 2012 3.733917013555015 2013 -3.9696116831957085 2014 2.398180832802055 2015 4.447892315142155 2016 0.5609257467232567 2017 -0.5448001900515749 2018 0.6316169989088962 2019 -4.389530877385113 2020 -17.295930134419336 2021 9.717524366746318 2022 7.70539711985829 2023 19.467660897485814