Year % of value added in manufacturing 1968 41.537094624611285 1971 42.359924453637916 1972 39.26603833720348 1973 38.42098619680871 1974 35.88758177604365 1975 40.459060469516295 1976 40.8898550245483 1977 40.921854667488525 1978 43.73990899750477 1979 39.77094124560948 1980 38.902178018380965 1981 41.08527131782946 1982 40.01128523429685 1983 42.758943464783506 1984 40.75290141926527 1985 41.88919188789698 1986 43.84162745428492 1987 46.02634445677051 1988 37.8106724828599