condition	mean	min	max
4 h after light	12.95725	12.6713	13.2432
8 h after light	11.7116	10.7776	12.6456
12 h after light	10.74004	9.31188	12.1682
4 h after dark	15.639	13.2792	17.9988
8 h after dark	16.739	15.8486	17.6294
12 h after dark	13.6584	13.5934	13.7234