Name Thursday, 24 of April Wednesday, 23 of April average on Thursday average for 7 days 1 day 15 ? 10 15 2 days 3 ? 1 3 3-4 days 0 ? 0.5 0 5-7 days 2 ? 1 2 amount of selected 20 ? 13 20 total 20 ? 13 20