By John S. McClenahen Both manufacturing productivity and productivity in the overall nonfarm business sector of the U.S. economy increased considerably more than first reported for the July-through-September period of this year. Revised data released by the U.S. Labor Department on Dec. 3 show manufacturing productivity in the third quarter rose at a seasonally adjusted annual rate of 9%, four-tenths of a percentage point higher than the 8.6% the department initially reported on Nov. 6. Manufacturing output increased at a seasonally adjusted annual rate of 3.5% during the quarter as hours worked fell 5%. Within manufacturing, productivity at companies that make durable goods -- products designed to last three years or more -- rose 14.8%, and productivity among nondurable goods producers increased a much more modest 3.1%. For the larger nonfarm business sector of the economy, the revised numbers show productivity increased at a seasonally adjusted annual rate of 9.4% during the third quarter, 1.3 percentage points higher than the 8.1% the Labor Department reported a month ago. From July through September, output rose 10.3% while hours worked advanced 0.8%. The increase in output was the largest since the third quarter of 1983, when output advanced 11.5%.