condition mean min max 2 h after light 0.247498 0.0 0.455246 6 h after light 0.0194135 0.0 0.116481 10 h after light 0.019296999999999998 0.0 0.115782 14 h after light 0.0734455 0.0 0.15677 18 h after light 0.16972766666666667 0.0 0.509972 2 h after dark 0.12292816666666667 0.0 0.45877