condition mean min max 0 h after light 4.421125 4.09535 4.7469 4 h after light 5.37288 5.31444 5.43132 8 h after light 9.37352 9.18687 9.56017 4 h after dark 10.89805 10.1122 11.6839 8 h after dark 7.502125 6.63523 8.36902 12 h after dark 5.54701 4.682 6.41202