Year % GDP 1962 3.2305508459038546 1963 2.3243651980204016 1964 2.282706492443291 1965 2.443254565703401 1966 2.181059872303509 1967 3.7412134082281923 1968 5.2492620897626585 1969 6.629257665179218 1970 9.03697232442716 1971 8.629332437280372 1972 9.374045020111598 1973 12.998356392263016 1974 11.439445026304833 1975 19.004851519377933 1976 18.802788169547995 1977 22.156489592450065 1978 23.840903404390296 1979 20.343771963053534 1980 20.952096375285723 1981 21.095963240090633 1982 22.22630773821693 1983 21.71596921483689 1984 21.865803590666445 1985 21.392435441075968 1986 19.78595889498854 1987 19.346480269683873 1988 19.586646622733163 1989 19.35570050653062 1990 24.477392473628047 1991 18.559974923021226 2005 18.401481312577346 2006 14.617422611557984 2007 16.299178684473286 2008 19.208394206267688 2009 19.977723344228 2010 18.275403071728054 2011 16.59344737711078 2012 16.76638118667877 2013 18.34583983428218 2014 19.52029977375682 2015 21.11557839020096 2016 20.298909759081166 2017 21.06657412128124 2018 22.041120894741404 2019 22.72354115503917