Year annual % growth 1961 -0.1395081896228021 1962 2.2038741628130225 1963 2.33725131915412 1964 0.6704232123999816 1965 9.945112604295758 1966 10.012130098525859 1967 11.275895546812606 1968 3.44583807326579 1969 10.789338887793633 1970 12.11733811222264 1971 19.31625023115285 1972 12.413415594578026 1973 10.72560432131749 1974 36.73135919219618 1975 27.18604918912628 1976 4.3422302686352054 1977 2.8035953260653343 1978 1.9007996668253924 1979 -1.0391764885407753 1980 -6.526905476239179 1981 1.4349894438871615 1982 3.8727175337937183 1983 9.768738175597875 1984 1.6666673006573376 1985 2.6328432959515737 1986 -13.290986926481125 1987 -6.3505890044045685 1988 0.4185811509716473 1989 -0.605329193149359 1990 17.021648866914177 1991 8.777145083069698 1992 3.3900540545712943 1993 5.923692466325562 1994 -3.21003739086855 1995 -5.433971807233334 1996 2.83000666178188 1997 5.541485064373134 1998 3.226535965126004 1999 -1.3211625404088636 2000 10.761974843618177 2001 5.323927934261619 2002 9.263245420635684 2003 1.98958391961024 2004 8.739079030977464 2005 6.293782334996621 2006 6.973644134226234 2007 8.163228706494422 2008 -2.8013172188539954 2009 1.4106768807871788 2010 2.812571360257138 2011 2.84052809742154 2012 -1.2386111011453806 2013 -0.30247759803559404 2014 0.21413109912475647 2015 1.667024650477586 2016 4.798317818407753 2017 0.9921841002753666 2018 -1.84677382861274 2019 -4.931647650081146 2020 0.2028497567769989 2021 4.896687428974204 2022 5.792934718151898 2023 2.703377384804611