condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.603394 0.366518 0.926769 12 h after light 0.356682 0.0 0.768368 4 h after dark 0.42739666666666665 0.0 1.28219 8 h after dark 0.093459 0.0 0.280377 12 h after dark 0.0 0.0 0.0