condition mean min max 3 h after light 8.6629775 1.51319 28.6382 7 h after light 7.56905 1.47817 24.0039 11 h after light 7.0804475 1.16468 23.5526 2 h after dark 8.691601666666667 2.96381 21.1845 6 h after dark 5.6065225 1.6292 17.7307 10 h after dark 4.486755166666667 0.836982 12.0487