Year % GDP 1967 11.162443448040326 1968 7.631676981069045 1969 11.080278615987986 1970 11.804847854502087 1971 12.715251706381265 1972 13.83183455884195 1973 17.22395114795251 1974 26.312278861842792 1975 28.688943399563314 1976 27.312201344326542 1977 20.682254764871423 1978 23.841107555707787 1979 22.420377494680803 1980 22.053366725118558 1981 20.895665214899818 1982 21.674045063262703 1983 20.553074353822705 1984 13.10414578041264 1985 13.357403608436197 1986 15.562230126906936 1987 15.216180878301119 1988 10.900666828997391 1989 12.114894010064917 1990 11.55896026485742 1991 11.239377391026297 1992 12.354922181143941 1993 11.942131518757822 1994 7.519248036014877 1995 9.755469203772506 1996 12.17659041095896 1997 12.73101896187861 1998 14.794899262036939 1999 13.774355751278023 2000 13.526602281527648 2001 13.49797040777412 2002 14.659540691638407 2003 14.88199917448762 2004 17.007036579120538 2005 14.843966256108141 2006 15.498843815585461 2007 16.242671611407825 2008 11.94032133577877 2009 16.472306610110437 2010 18.00826805225464 2011 18.41144657306967 2012 19.558049332331294 2013 20.90772606369225 2014 22.06950993685097 2015 24.991636630288124 2016 26.42641658305757 2017 25.948223942032044 2018 25.58980468553112 2019 24.500359084432883 2020 25.986728304283 2021 28.282850445813807 2022 29.706071935138617 2023 27.533562257772175