condition mean min max 0 h after light 0.8081885 0.764354 0.852023 2 h after light 0.1508425 0.142256 0.159429 4 h after light 1.206075 1.11357 1.29858 8 h after light 9.29073 7.18596 11.3955 12 h after light 16.6137 14.2622 18.9652 2 h after dark 6.906955 6.35796 7.45595 4 h after dark 4.32164 3.00265 5.64063 8 h after dark 5.396535 4.63192 6.16115 12 h after dark 1.4810050000000001 1.21265 1.74936