Year % of value added in manufacturing 1967 3.6049758822036053 1968 2.8212520593080725 1969 2.6300040946171532 1970 5.6111645813282 1971 4.9601417183348095 1972 5.657505285412262 1973 8.56350950970085 1974 17.62867183101326 1975 10.960049921002668 1976 9.901081417602436 1977 22.179321150494825 1978 20.715664427195083 1979 18.808975380133326 1986 12.913494643361433