condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.27606633333333336 0.220289 0.345961 4 h after dark 0.0 0.0 0.0 8 h after dark 0.09653133333333334 0.0 0.289594 12 h after dark 0.16730799999999998 0.0 0.339537