condition mean min max 0 h after light 3.00637 2.51703 3.49571 4 h after light 0.7108955 0.667851 0.75394 8 h after light 1.091703 0.778406 1.405 4 h after dark 1.34386 1.28746 1.40026 8 h after dark 1.1871025 0.867965 1.50624 12 h after dark 2.277915 1.1739 3.38193