Name during 28 October - 3 November during 21-27 October average for 4 weeks 1 session 32 ? 32 2 sessions 2 ? 2 from 3 to 5 sessions 0.43 ? 0.43 from 6 to 10 sessions 0.29 ? 0.29 amount of selected 35 ? 35 total 35 ? 35