11. Search engines use algorithms to determine the position of ads according to click through rates . 12. They also track click through rates for different listings. 13. The average click-through rate for a Web-based banner ad is only 0.5 percent at best. 14. Napocor Offers Consumer Refund Through Rate Cut, BUSINESS DAILY 15. Click-through rates , the figures measuring how many Web viewers click on banners, continue to drop. 16. In general there is no ideal click-through rate . 17. The penalties, potentially millions of dollars an hour, would be returned to consumers through rate adjustments. 18. Most residential customers have benefited through rate cuts. 19. Companies which pay to put ads directly on Wikipedia will naturally care about their click-through rates . 20. Even time of day can affect click-through rate .