Name Friday, 16 of May Thursday, 15 of May average on Friday average for 7 days 1 day 120 ? 123 120 2-3 days 2 ? 1.2 2 4-7 days 1 ? 1 1 8-14 days 0 ? 1.8 0 15-31 days 1 ? 0.25 1 amount of selected 124 ? 128 124 total 124 ? 128 124