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 0.16409433333333334 0.0 0.492283 4 h after dark 0.0 0.0 0.0 8 h after dark 0.20142066666666666 0.0 0.604262 12 h after dark 0.0 0.0 0.0