Year % GDP 1970 -9.49667690905589 1971 -11.814410667028056 1972 -9.024440230795696 1973 -7.034348095120441 1974 -15.988074263983087 1975 -24.474444753170907 1976 -17.543372083379577 1977 -10.762058963670778 1978 -7.468441605836393 1979 -10.09987440263653 1980 -18.31191131036984 1981 -29.36328566895647 1982 -23.583900565630525 1983 -24.01328160549866 1984 -29.529352177423142 1985 -34.604236329018356 1986 -36.77521974785018 1987 -16.550449619197906 1988 -29.640528306861142 1989 -34.32243881090037 1990 -27.159527709662175 1991 -21.275090761591688 1992 -10.96058956202745 1993 -12.388742549686311 1994 -14.980692847433454 1995 -12.953779787040853 1996 -14.356846290532168 1997 -12.875293989469395 1998 -10.73198369948239 1999 -7.7436530324032775 2000 -6.653802398552346 2001 -5.2209687152065305 2002 -3.9461307627853492 2003 -2.756649875391162 2004 -3.0990831930311704 2005 -1.8508932640084839 2006 -4.5819352556376804 2007 -5.1201986859455255 2008 -6.909870740077778 2009 -0.22130393079363161 2010 -0.577384509022992 2011 2.6629709899633087 2012 3.02036828147182 2013 9.562980615089533 2014 12.307062145311054 2015 17.177182667569628