condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0098531 0.0 0.0295593 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 0.016041466666666667 0.0 0.0481244 9 h after dark 0.0 0.0 0.0 12 h after dark 0.01665345 0.0 0.0333069