condition	mean	min	max
4 h after light	8.36632	7.58093	9.15171
8 h after light	7.59349	7.55928	7.6277
12 h after light	9.091595000000002	9.03944	9.14375
4 h after dark	10.3385	10.0477	10.6293
8 h after dark	10.65555	10.6105	10.7006
12 h after dark	9.96875	9.7158	10.2217