condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0784195 0.0 0.156839 4 h after dark 0.078155 0.0 0.15631 8 h after dark 0.15678799999999998 0.15613 0.157446 12 h after dark 0.0 0.0 0.0