condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.017713833333333335 0.0 0.106283 10 h after light 0.0176075 0.0 0.105645 14 h after light 0.0 0.0 0.0 18 h after light 0.0 0.0 0.0 2 h after dark 0.042398333333333336 0.0 0.148285