Name Saturday, 17 of May Friday, 16 of May average on Saturday average for 7 days 1 day 127 ? 142 127 2 days 7 ? 6 7 3-4 days 5 ? 3.5 5 5-7 days 3 ? 2.5 3 amount of selected 142 ? 154 142 total 142 ? 154 142