Year annual % growth 1961 7.8355812435273435 1962 6.968433594076856 1963 -3.9532294007968574 1964 0.7826086960696159 1965 2.3871153314987623 1966 -1.4606741601989484 1967 8.836944129119445 1968 9.14091147306766 1969 5.8795296361976455 1970 2.8331822305872407 1971 4.474322239489609 1972 6.751054852194585 1973 2.7667984198660065 1974 13.837226291364033 1975 4.131216078703346 1976 6.210709819705528 1977 6.658266463173462 1978 8.112603369804177 1979 13.093988584363586 1980 12.737420224564005 1981 16.596345497045718 1982 3.883495145631059 1983 7.476635514018696 1984 3.4782608695652186 1985 0.8403361344537785 1986 2.499999999999986 1987 3.2520325203252014 1988 3.937007874015734 1989 3.787878787878782 1990 10.218978102189794 1991 7.348010596026498 1992 2.85428931967364 1993 5.828618158543009 1994 7.827438450015393 1995 12.584367842110495 1996 9.720916610680334 1997 7.820479799865737 1998 -6.168317180872336 1999 4.633249327972379 2000 1.583047319273149 2001 3.49413624875055 2002 3.835820358025984 2003 3.892893355438119 2004 4.967167870415068 2005 3.9533656187584114 2006 3.1732926021979466 2007 5.006741905044237 2008 5.336150220604523 2009 4.858944511148209 2010 4.739741989185873 2011 5.060019214334432 2012 5.516106772892897 2013 5.47790527681407 2014 5.283725373598315 2015 4.841494521929462 2016 5.044535238743109 2017 4.981635727101946 2018 5.1368912441213155 2019 5.160699209505836 2020 -2.666099876517606 2021 2.0056384934666056 2022 4.9555498399332265 2023 4.931581613240283