Villareal's nominal GDP increased from $159 bilion to $220 billion last year. During the year, its economy expertenced inflation, wth is price index increasing from 106 to 110 , while the number of persons employed increased from 20 milion to 22 miltion. By what percentoge did its labour productivity increose during the year? Lobour productivity increased by C. Round your answer to 2 decimal places..