condition mean min max 4 h after light 0.0161618 0.0 0.0323236 8 h after light 0.0 0.0 0.0 12 h after light 0.00937805 0.0 0.0187561 4 h after dark 0.016796433333333333 0.0 0.0503893 8 h after dark 0.0 0.0 0.0 12 h after dark 0.018808933333333333 0.0 0.0564268