condition mean min max 3 h after light 2.5062233333333332 2.31014 2.72227 6 h after light 2.333625 0.821235 4.58134 9 h after light 2.0709653333333335 0.899756 3.68614 12 h after light 4.378902500000001 1.45054 8.46892 3 h after dark 4.922863333333334 2.80314 8.22775 6 h after dark 7.755096666666667 6.45797 9.35914 9 h after dark 3.58731 0.0 5.95682 12 h after dark 2.6242165 0.925353 4.32308