condition mean min max 4 h after light 8.531045 7.64511 9.41698 8 h after light 10.475895000000001 9.43299 11.5188 12 h after light 16.023699999999998 15.4174 16.63 4 h after dark 12.8926 11.7174 14.0678 8 h after dark 12.968 12.5043 13.4317 12 h after dark 10.442385 9.93587 10.9489