Name Thursday, 8 of May Wednesday, 7 of May average on Thursday average for 7 days 1 day 64 ? 49 64 2-3 days 3 ? 1.8 3 4-7 days 0 ? 0.5 0 8-14 days 1 ? 0.75 1 15-31 days 2 ? 1.2 2 amount of selected 70 ? 54 70 total 70 ? 54 70