Name Sunday, 11 of May Saturday, 10 of May average on Sunday average for 7 days 1 day 28 ? 29 28 2 days 0 ? 1.2 0 3-4 days 2 ? 0.75 2 5-7 days 0 ? 0.25 0 amount of selected 30 ? 32 30 total 30 ? 32 30