Year annual % growth 1961 9.901368862424945 1962 -4.563604528270133 1963 15.526396692521033 1964 -6.404374566015278 1965 16.158605248863992 1966 31.11967469118474 1967 3.0174209103783056 1968 -1.857433321761448 1969 9.631359842652813 1970 14.552708774689663 1971 18.417562196107113 1972 23.375412908051942 1973 29.401308911429282 1974 0.11521646116688089 1975 10.320017228473716 1976 14.31911579750178 1977 6.31394425617782 1978 12.049276306677442 1979 18.804959183106163 1980 11.071219938306996 1981 8.406914039777405 1982 -16.464108545735485 1983 -5.846419368218164 1984 10.944626426546364 1985 1.831127821971151 1986 16.848951816347963 1987 5.937231452585152 1988 -2.122849133175535 1989 1.942950946434479 1990 -3.4687678864605687 1991 4.12328972737437 1992 10.021169267944472 1993 -2.5968528132696633 1994 7.384034424201616 1995 2.999030565975687 1996 4.084473508683146 1997 23.102890601057098 1998 4.514390251314509 1999 24.44487447200727 2000 22.183149744544878 2001 0.12019087481662893 2002 -7.324603757678659 2003 -0.734170296158851 2004 18.550612002786053 2005 3.339476885898222 2006 5.212741904859513 2007 10.618352940790714 2008 3.4728029643556795 2009 -18.51933595062401 2010 4.86119236808031 2011 0.6389446299047847 2012 1.9626909157009607 2013 1.787376097662687 2014 8.247337631493352 2015 5.018175966815463 2016 -0.4146124719343902 2017 8.511477938546847 2018 9.117633878088611 2019 4.886259437694449 2020 -21.52066293498345 2021 24.17948251578042 2022 6.247147729272953 2023 3.673784085506867