condition	mean	min	max
4 h after light	8.24259	8.06681	8.43858
8 h after light	7.918116666666666	7.7655899999999995	8.14293
12 h after light	8.05339	7.7841	8.24656
4 h after dark	8.293623333333333	8.016639999999999	8.43407
8 h after dark	8.423046666666666	8.16257	8.558769999999999
12 h after dark	8.618363333333333	8.506310000000001	8.78918