condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.18634130000000002 0.0562629 0.296099 6 h after dark 0.1473254 0.0527122 0.212837 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0713499 0.0581369 0.0826828