Name Saturday, 19 of April Friday, 18 of April average on Saturday average for 7 days 1 session 56 ? 50 56 2 sessions 9 ? 6.8 9 from 3 to 5 sessions 5 ? 5.5 5 from 6 to 10 sessions 1 ? 2 1 amount of selected 71 ? 65 71 total 71 ? 65 71