Industrial production rose 0.5 pct year-on-year, the statistics bureau ISTAT said.On a daily average, industrial output fell 2.1 pct year-on-year, ISTAT said, adding that there were 22 working days in May against 21 a year earlier. On an seasonally adjusted basis, production fell 1.0 pct in May from April. The consensus was for a 0.6 pct drop in monthly production.