Year annual % growth 1961 14.310206828157845 1962 -10.183937682692289 1963 1.0591484761026209 1964 25.643767430968495 1965 2.7538588928180303 1966 18.072135426426158 1967 -22.015648227511107 1968 28.85023210557901 1969 15.43813604477225 1970 18.803515190734245 1971 19.27026026626865 1972 13.269651327456472 1973 17.221305764436963 1974 -9.741291447522144 1975 -7.998763235757295 1976 -17.179295969493154 1977 41.21032958875003 1978 -23.864887881691615 1979 1.4343554593864667 1980 26.305528267100954 1981 3.8423456369510944 1982 -16.600796971939545 1983 29.43282671642251 1984 48.5908546464029 1985 8.156446626767135 1986 -1.8646442521245064 1987 23.281624494716738 1988 14.00402399408054 1989 0.10589975385686046 1990 -24.506348081159572 1991 -6.865953853855771 1992 -38.26479277163764 1993 -35.093418290810035 1994 -25.28160397610631 1995 36.59999230953977 1996 -5.499989836995184 1997 -22.888890740037724 1998 66.85878119322871 1999 59.41277721338889 2000 13.289986662121962 2001 -22.979923676787777 2002 41.01680310211117 2003 110.32691720134434 2004 -2.0845438698431167 2005 23.531051108968185 2006 -11.747162906202945 2007 30.06401707430254 2008 -6.910713046591013 2009 0 2010 49.077430602009855 2011 29.563754405366836 2012 27.065226885321565 2013 8.01709138853856 2014 8.660266599761314 2015 -6.470107500211697 2016 -3.8647862062991862 2017 38.688361462099465 2018 22.63202607196024 2019 -15.274996992042688 2020 12.044277366727712 2021 43.5886220042328 2022 24.88738611637305 2023 85.61321135171426