condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.04370016666666667 0.0 0.262201 18 h after light 0.049532 0.0 0.297192 2 h after dark 0.0 0.0 0.0