condition	mean	min	max
4 h after light	6.81546	6.26544	7.36548
8 h after light	6.236535	6.1559	6.31717
12 h after light	6.088705	5.67362	6.50379
4 h after dark	6.75014	5.94193	7.21336
8 h after dark	6.441873333333334	5.61231	7.13152
12 h after dark	6.874453333333333	6.24881	7.42383