Year annual % growth 1966 -6.858389371441547 1967 3.942697216432947 1968 -1.7736978100320613 1969 2.327861433639967 1970 0.4889908481829508 1971 10.144930683475309 1972 14.175951014446397 1973 0.7570630991812948 1974 17.824348789017066 1975 24.877772206516838 1976 14.321382153514037 1977 0.7990830821136683 1978 4.9042314635862 1979 7.125084546020204 1980 3.93901116088972 1981 14.202010050644162 1982 8.1798375106424 1983 -4.688299667588495 1984 4.750658940791681 1985 -8.253593602333424 1986 -17.787294525792433 1987 -10.104216642656468 1988 -3.9768132564465333 1989 21.830869741252542 1990 13.515730255980003 1991 2.0002261567746444 1992 18.363475869443178 1993 3.901408754494142 1994 1.0045406523324374 1995 -6.752141713811241 1996 2.194166722153284 1997 8.572505364486844 1998 5.7999295370388495 1999 8.499940923227584 2000 4.299680078129356 2001 12.80569839661905 2002 -1.7002912120707663 2003 -1.772301185620904 2004 0.9999259885786529 2005 2.7005641740438477 2006 9.456315076934828 2007 6.298991741352637 2008 5.30007630009375 2009 3.4838137070653374 2010 40.38383453393064 2011 -13.140610767534397 2012 6.424550171100577 2013 0.5238045845866566 2014 -2.507351803126454 2015 -0.2910514896544498 2016 1.0508438594629013 2017 -0.36239495798319865 2018 -0.15813610247219856 2019 0.4962779156327599 2020 -19.984239558707642 2021 3.23681964414682 2022 1.7425591452556546 2023 -10.695086885860732