condition mean min max 4 h after light 4.1749600000000004 3.73278 4.61714 8 h after light 3.688275 3.60654 3.77001 12 h after light 3.6341400000000004 3.42287 3.84541 4 h after dark 6.486470000000001 5.70498 7.26796 8 h after dark 11.348600000000001 10.5714 12.1258 12 h after dark 9.353555 9.33837 9.36874