condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.8338886666666667 0.553965 1.39371 6 h after dark 0.47859 0.0 1.43577 9 h after dark 0.0 0.0 0.0 12 h after dark 0.487891 0.427169 0.548613