condition mean min max 4 h after light 8.357789499999999 8.272713 8.442866 8 h after light 10.4174955 10.057908 10.777083 12 h after light 11.7927115 11.335475 12.249948 4 h after dark 10.671218499999998 8.90815 12.434287 8 h after dark 11.696855 11.511351 11.882359 12 h after dark 11.099602 11.099602 11.099602