Name Monday, 31 of March Sunday, 30 of March average on Monday average for 7 days from 12 to 24 hours 0 ? 0.5 0 from 1 to 3 days 1 ? 1.2 1 from 3 to 7 days 3 ? 1.2 3 amount of selected 4 ? 3 4 total 4 ? 3 4