condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.06812633333333333 0.0 0.204379 8 h after dark 0.0 0.0 0.0 12 h after dark 0.268755 0.0 0.806265