Year annual % growth 1961 4.297159504734154 1962 12.27817942819587 1963 9.047671313064782 1964 6.275582097564254 1965 6.984673180433447 1966 9.925049426067446 1967 6.948526944500372 1968 -1.2800883511960137 1969 3.4934275762121416 1970 2.317897064242729 1971 4.5607885037876486 1972 2.272205382566355 1973 7.4880718495649745 1974 9.265235782547393 1975 3.433509214651693 1976 0.9241460890137461 1977 -2.0621199912094283 1978 -8.08743782489995 1979 -0.5838911154965132 1980 7.049891540130162 1981 7.472615702242365 1982 -2.4137317680540775 1983 -5.593022619980687 1984 2.757049493672099 1985 1.7492601813142983 1986 15.009186848495489 1987 11.301911482542977 1988 -8.337360521057974 1989 -16.338269778568176 1990 -0.5492903432124052 1991 3.716839267981271 1992 -0.7413486527150894 1993 4.435380149193406 1994 9.459007741027435 1995 9.516768059919784 1996 2.3672720601724393 1997 3.622913097397145 1998 -1.976410362837683 1999 -1.4340357662070033 2000 2.5238783956009314 2001 1.0042530605973923 2002 4.87108394581999 2003 2.5139443807112656 2004 3.3970685652176655 2005 3.6605315701410177 2006 6.211672087078625 2007 8.649424313300116 2008 8.897855612637542 2009 3.0726550413507283 2010 9.100679597707796 2011 7.201453878424502 2012 7.435397753378652 2013 5.732561569090095 2014 4.223314004372554 2015 4.018387359025226 2016 3.7428597159324966 2017 2.6442494008662294 2018 3.8305172799158953 2019 3.244414707935775 2020 -9.85988115397295 2021 12.544737886777597 2022 3.5758723739904212 2023 0.14319156296002689