Following are South Korea"s preliminary export and import figures for September, released by the government on Friday (rounded): Sept *August Balance ($ billion) +4.20 +1.65 Exports ($ billion) 55.83 53.21 (% growth vs yr ago) +16.7 +34.8 Imports ($ billion) 51.62 51.57 (% growth vs yr ago) +31.0 +44.0 Avg exports per working day +27.9 +29.0 (% growth vs yr ago) * Revised on Sept. 15 NOTES: - Sept exports gained 16.7% from a year earlier, government data showed on Friday, slowing down from a 34.8% jump in August and marking a 11th straight month of expansion. - Reuters poll: Overseas sales in September were seen growing 16.3% from a year ago, the median forecast in a poll of 22 economists showed. - There were 21 working days last month, versus 23 days in the comparable month of 2020. (Reporting by Cynthia Kim; editing by Richard Pullin)