Year annual % growth 1961 -5.210919520566804 1962 -2.6178011329100173 1963 4.569895415151535 1964 3.341899703273185 1965 1.7412946788516308 1966 4.9331103573414055 1967 1.115537854815912 1968 -11.03230889587276 1969 -13.19751992388511 1970 10.204081597581322 1971 4.537037063975774 1972 -1.240035436288622 1973 -0.35874439726794094 1974 7.650765080271739 1975 1.6722408105397335 1976 13.32236842155885 1977 2.757619722007476 1978 14.053672332453843 1979 2.336356037453527 1980 2.0902090176760453 1981 4.131751958142999 1982 -3.2411133817444835 1983 -2.5332286389315186 1984 -1.9685412927852042 1985 -1.5855336323411677 1986 2.0831855335778044 1987 4.5372462592622185 1988 1.7151681779675272 1989 1.50764128020964 1990 0.6956839340301002 1991 -1.4678755193479986 1992 0.23705670690804936 1993 -1.3398808716879103 1994 -3.676440652898094 1995 0.800891347735444 1996 2.1139205160429384 1997 3.346055469038859 1998 0.9824237201111004 1999 33.63432066859448 2000 1.1751647551637774 2001 1.543691606441186 2002 4.0734232142339835 2003 1.7498174145647312 2004 6.285114092362278 2005 5.5502817957746515 2006 4.005677121575829 2007 6.501647968799688 2008 1.2279379642129413 2009 1.7030987177730168 2010 2.534653743111832 2011 5.4855909858158185 2012 2.913559311746411 2013 1.6634622737629314 2014 2.2975941562720408 2015 5.661469886795587 2016 4.324201206682886 2017 4.030881788588971 2018 3.4813426398090144 2019 7.5268478078403405 2020 0.8353448621140132 2021 14.425046890605557 2022 1.4701254348864268