condition	mean	min	max
4 h after light	8.381665	7.1482	9.61513
8 h after light	12.92925	12.4613	13.3972
12 h after light	13.8013	11.8813	15.7213
4 h after dark	25.914466666666666	24.5976	28.106
8 h after dark	19.8891	15.8958	24.7585
12 h after dark	11.469566666666667	10.1866	12.7361