condition	mean	min	max
4 h after light	3.536124	0.546778	6.52547
8 h after light	6.848129999999999	5.44077	8.25549
12 h after light	7.1139600000000005	6.4223	7.80562
4 h after dark	16.337166666666665	14.3624	18.7717
8 h after dark	6.9805166666666665	4.51303	8.9437
12 h after dark	8.85144	6.59621	9.9831