condition mean min max 0 h after light 1.46664 0.0 2.93328 2 h after light 0.0 0.0 0.0 4 h after light 0.745105 0.0 1.49021 8 h after light 0.0 0.0 0.0 12 h after light 0.73651 0.0 1.47302 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0