Name during 12-18 May during 5-11 May average for 4 weeks 1 session 4 4.9 4.7 2 sessions 0.29 0 0.18 from 6 to 10 sessions 0.14 0 0.036 amount of selected 4.4 4.9 4.9 total 4.4 4.9 4.9