condition mean min max 0 h after light 18.33305 16.1847 20.4814 2 h after light 13.232099999999999 11.7868 14.6774 4 h after light 7.38666 7.08446 7.68886 8 h after light 6.8502849999999995 6.72497 6.9756 12 h after light 9.63443 9.20246 10.0664 2 h after dark 10.61216 7.31662 13.9077 4 h after dark 15.7328 12.7745 18.6911 8 h after dark 23.3178 22.0565 24.5791 12 h after dark 22.5133 19.9077 25.1189