condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0548281 0.0 0.093324 12 h after light 0.0461056 0.0 0.081009 4 h after dark 0.07729886666666667 0.0469592 0.129114 8 h after dark 0.07906676666666666 0.0 0.141777 12 h after dark 0.16005083333333334 0.0888435 0.252688