condition mean min max 4 h after light 4.213396666666666 3.9264 4.47652 8 h after light 8.750796666666666 3.94576 12.6016 12 h after light 9.89972 7.14846 11.4008 4 h after dark 11.9292 10.2845 14.6816 8 h after dark 5.77415 4.33728 6.95593 12 h after dark 3.39357 1.9018 4.3237