condition mean min max 2 h after light 3.1752016666666667 0.0 7.28542 6 h after light 1.6279633333333334 0.0 5.23611 10 h after light 4.825825 0.0 11.1309 14 h after light 4.244678333333334 2.55159 6.75874 18 h after light 4.805978333333334 0.0 14.6194 2 h after dark 2.569275 0.0 6.49579