condition	mean	min	max
4 h after light	7.64121	7.58506	7.69736
8 h after light	5.57101	5.35451	5.78751
12 h after light	6.0665700000000005	5.41589	6.71725
4 h after dark	5.567995	5.26539	5.8706
8 h after dark	4.432135	4.26345	4.60082
12 h after dark	6.458125	6.39027	6.52598