Year annual % growth 1966 -10.589697335275261 1967 -10.671805358634415 1968 23.89346470364096 1969 -3.5725653205332435 1970 7.0327826905992765 1971 23.525806385811848 1972 27.92313121509531 1973 -9.69273575736635 1974 12.332292417708416 1975 5.8092778064835215 1976 4.515099403538784 1977 -10.00518923946963 1978 5.913974227108241 1979 -4.767942694226235 1980 9.86103174674831 1981 6.532654910610887 1982 -10.31228964210375 1983 2.502716176407077 1984 12.862710503119487 1985 17.36164975091323 1986 -12.175245115892892 1987 20.53230669766579 1988 -25.804413775265573 1989 10.943880670952439 1990 30.321145326423448 1991 13.909310517264544 1992 5.457455314225015 1993 -5.057527441094933 1994 -9.973184359378337 1995 -9.909499333201424 1996 29.546032371410547 1997 2.9693282558924494 1998 1.37724743326595 1999 10.988261016671458 2000 -0.38112433243935584 2001 -2.557430051943001 2002 -9.911905200531152 2003 17.763265849492925 2004 13.515073584656491 2005 -7.8088370314646625 2006 7.911920731149763 2007 0.827392327213829 2008 -0.6576448157306487 2009 9.229736696955243 2010 -9.085874771751065 2011 11.380187206590506 2012 8.765813058215059 2013 -4.976804953325882 2014 9.299202327339628 2015 6.514912738484995 2016 -7.6578311768834055 2017 5.863429414928859 2018 5.877049426889087 2019 5.923359725300827 2020 0.35526617274848604 2021 -2.3309134569087178 2022 1.0220196317155938 2023 -11.018848199742422