The euro zone's unadjusted trade surplus rose more than expected in October, data showed on Tuesday, thanks to a strong rise in exports and flat imports. The European Union's statistics office said the unadjusted trade surplus in October was 24 billion euros, up from 16.5 billion a year earlier and 18.1 billion the month before. Economists polled by Reuters had expected 19.6 billion. The surplus was a result of a 4 percent unadjusted year-on-year rise in exports and flat imports, Eurostat said. Adjusted for seasonal swings the October surplus was 19.4 billion euros, after exports eased only 0.3 percent month-on-month while imports declined 1.3 percent in October against September. Detailed data for October was not yet available, but numbers for the January-September period showed that the main improvement in the trade balance came from the fall in the prices of energy. (Reuters)