Name Sunday, 20 of April Saturday, 19 of April average on Sunday average for 7 days 1 day 240 ? 163 240 2 days 6 ? 6.8 6 3-4 days 4 ? 3 4 5-7 days 2 ? 2 2 amount of selected 252 ? 176 252 total 252 ? 176 252