Year	% of value added in manufacturing
1968	30.906129262415355
1971	29.998201277093262
1972	32.686791421936896
1973	30.248962347507778
1974	31.34626103793235
1975	27.463964748935748
1976	29.98797381515217
1977	32.881309499349356
1978	31.16101570526934
1979	32.6285722095423
1980	31.6379201812917
1981	32.00442967884828
1982	32.60919746595194
1983	30.776608486449785
1984	30.35622810473345
1985	29.809954716409237
1986	30.09023083363874
1987	30.034137002025947
1988	31.81246252639445