Year % of value added in manufacturing 1968 10.325377273400374 1971 12.447162514614623 1972 12.953603788189227 1973 16.16807371602106 1974 16.501892216974213 1975 15.382508899897932 1976 14.408485279288513 1977 13.355249640435588 1978 12.182592103331865 1979 15.976711448837621 1980 17.373788241218683 1981 16.057585825027683 1982 17.31257534176306 1983 15.875233579679923 1984 16.333436380823347 1985 16.347654432775304 1986 15.397202032712801 1987 14.869298542431395 1988 18.412943926451803