condition	mean	min	max
4 h after light	5.8347750000000005	5.07544	6.59411
8 h after light	4.471905	3.79471	5.1491
12 h after light	6.52722	6.09807	6.95637
4 h after dark	8.13005	7.73209	8.52801
8 h after dark	8.905095	8.17331	9.63688
12 h after dark	8.497060000000001	7.52754	9.46658