condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.417832 0.327657 0.579952 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.34000833333333336 0.0 0.625857