condition	mean	min	max
4 h after light	7.8683895	7.681155	8.055624
8 h after light	7.7332985	7.646142	7.820455
12 h after light	7.8629725	7.820455	7.90549
4 h after dark	7.868907	7.820455	7.917359
8 h after dark	7.8129925	7.80553	7.820455
12 h after dark	7.982294	7.982294	7.982294