condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.047397 0.0 0.142191 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.041042666666666665 0.0 0.123128 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0